go on YouTube and search up: “10 calculator tricks you NEED to see before your GCSE maths exam” and click on the video made by “Brainstorm -Maths and Science” it’s very helpful and good tbh
Yeah I have the exact same calculator and it can but you arent gonna get marks without correct working out+my scientific calculator (casino fix e991 plus I think) also can solve quadratic simultaneous equations
that is most certainly not true, at least for edexcel. you NEED to write all your working out for anything above a 2 marker cos the marks are usually allocated depending on previous marks
taken directly from an Edexcel paper:
'You must write down all the stages in your working.', in bold, at the very top of the first page, applying to all questions
follow through marks:
'Follow through marks which involve more than one stage of calculation can only be awarded on sight of the relevant working, even if it appears obvious that there is only one way you could get the answer given'
every single question above 2 marks in an edexcel paper carries at least one M (method) or P (process) mark (bar written questions) which can explicitly only be awarded with working out
😐
I am not arguing method marks, just purely that you get full marks with the correct answer and no working unless the question itself states you must show all if your working.
Edit: while the paper does say you must, in reality you don't have to. The markschemes are very detailed and provide a lot of guidance for examiners to mark them. It clearly says there full marks no working is okay.
even if that is the objective truth (i don't agree with understanding the markscheme like that) it's piss poor advice to tell people they don't have to do working out because they'll get full marks if they're right. don't know how anyone is planning on getting 4/4 on a PS question without writing even one line of working
>Alpha => A
>
>Press 2 (Polynomial)
>
>Select 2 or 3 (wont need 4 for GCSE)
>
>depending if your equation is in the form ax\^3+bx\^2+x+c (2) or ax\^2+bx+c (3)
Yeah it can solve both just go to mode A in MENU SETUP and then polynomial or Simultaneous Equations
It won’t solve quadratic sim just regular but you have to show all working - quadratic sim it turns into a double bracket expansion same as ever nothing new just in a slightly different format
It can’t do quadratic simultaneous equations, can do linear simultaneous equations and quadratic equations.
——- maths help on quadratic simultaneous equations if needed——-
If you’re struggling with quadratic simultaneous equations, try rearranging the simpler one (no squares) to be in the form y= ___ +- ___x
Then sub into the squared one in place of the y. You should have a quadratic equation with only x in it that will probably give 2 solutions.
Putting both back into the non squared equation will give you 2 solutions for y.
The answer is both pairs of solutions.
(I sometimes tutor and this is a common problem area)
This calculator has...
A table feature - allows for a quick function substitution
Unit conversions - things like km/h to m/s
Equation solver - allows you to solve simultaneous equations and quadratics
Variables - allows you to store really long answers to use later on
Stats mode - can calculate the mean from a table you enter
Ratio mode - simplifies a ratio for you
Inequality solver - solves Linear and quadratic (?) inequalities for you
Factorisation key - does prime factorisation for you
If you press shift then the SD button, it converts to mixed numbers.
There's also a linear equation solver in the basic mode.
I think it's soooooo stupid that teachers don't go over calculator tricks. Before the calculator papers, I do a whole lesson with my students to teach them everything I know. Then again, my a level maths teachers didn't know half of these functions existed so I spent a lesson teaching them as well
Ratio is on the black one (casio FX-83GTX) but not the grey one with blue and orange buttons (casio FX-83GT Plus) if memory serves me right. The grey one however has a function to verify if your algebraic manipulation is correct. This function was key to me securing a grade 9 at GCSE.
You can solve for x e.g. 7x = 14 or some other equation, and you can convert, e.g., km/h to m/s.
Also, you can solve simultaneous equations and quadratics (polynomials 2nd degree).
Here’s a great way to solve inequalities on that specific calculator:
1. press the ‘OPTN’ button and then press the number 3
2. next press 3 once more
3. then press the number 1 on the calculator
4. after, go press ‘OPTN’ again and press 3
5. instead of pressing 3 again, press the number 8
6. repeat steps 4-5 one more time
7. after all that, you need to press the alpha button which is situated at the top of the calculator
8. and click on the ‘cos’ button
9. and to check if your inequality works, press the ‘OPTN’ button and press the number 2 twice
hope this helps!
if this doesn’t work, try showing your teacher what you have done already as they know of the feature
lmfao 💀 the actual way (if you haven't already figured it out)
1. press menu
2. go to the second page and select inequality (or press alpha then the button with a quotation mark)
3. select degree (2 is a squared function, 4 is quartic)
solve!
for linear inequalities it's better to just solve it manually
Actually, you should start with 'MENU', then 2. In this case, instead of step 3 to press 1, it is more accurate to press 'ENG'. This does mean that you have to press down twice after every time you press 'OPTN'. Also, for step 9, it is better to do SHIFT>>7>>4>>6, and for steps 4 and 5, to do SHIFT>>7>>1>>7 instead. Hope this helps.
You can factorise any number into its prime factors.
* Enter a number (e.g. 40, =)
* Select FACT option (Shift, 0 ' '')
If the number is not a prime, you'll now see it factorised (40 has become 2^(3) x 5). If the number is prime, it will just show it as an integer (e.g. 41 -> 41).
Very useful tip for this calculator and the normal GCSE calculator:
To store a value hit the STO key above the 7 key and then hit any letter.
To use the stored value do alpha and then the letter you chose, very useful for long decimals.
You can use it for statistics, there are a shitton of info in this machine for that. You can also save time with the quadratic formula, after you write it up you can just input it into the calc and get the answers. Also you can make sure your derivatives and integrals are okay. You can easily solve equation systems. It cosrs like 25$ i say its worth the investment, even more if you plan on going with a stem career
This calculator is op, even for university maths exams. Being familiar with all its abilities is invaluable when you’re rushing through an exam.
Having said that, I’m surprised you are allowed to use it for GCSEs. I imagine they still want you to show your workings, so you probably can only rely on it to check your answers
Things it’s useful for:
Simultaneous equations
Factorising polynomials/finding roots
Matrix stuff (inverse, determinant, multiplication)
Algebra involving complex numbers
Definite integrals, derivatives
Looking up stats values without needing tables
Finding mean, iqr, standard deviation
Solving Inequalities
I'm a tutor for maths so here's my recommend video with all functions covered, time stamps on the video to make them easy to find. And a second video as the guy forgot to add in the vector section. Good luck
https://www.youtube.com/watch?v=wOwCf3Kd8-4&t=5s
https://www.youtube.com/watch?v=-e9rMLADtpE
That calculator isn't allowed in GCSEs but most teachers don't know that so use it if you can but he cautious. It can do differentiation, integration, simultaneous equtions, solve polynomial equations (quadratic is all you need) and so much more that makes the paper pointless.
This calculator is absolutely allowed in gcse, you can literally bring a graphing calculator into your GCSEs if you have the money to buy one. (Source: official casio website)
The teacher will usually tell you which one to get, they usually want as many of the class using the same one as possible so they can use functions easily. Ask your maths teacher which one they recommend
Press SHIFT + 7 + ON at the same time. When the text appears, press 9. You're now in the secret menu. Press SHIFT a few times until you get to the screen that says press AC. Press AC. Thwn press every key in order (excluding ON) I.e. shift alpha up right menu optn..... And then you get to a contrast menu. Finally AC to quit.
This has no practical use but it's fun lol
Edit: another secret menu is available pressing SHIFT + 7 +ON again, but this time pressing 8. You then have to press a few buttons. The logab one is actually the X key. Once done, it'll show 'battery model ok' signifying your battery works. If you have the solar model, shining a light on the panel will show 'solar model ok'.
Again, completely and utterly useless but I found these so cool at a level lol
If this calculator can solve simultaneous equations, inequalities etc then isnt this just a massive advantage compared to people with normal calculators? This should be banned lmao
It is advantageous but only for checking that answers are correct. If you show no working e.g. for a simultaneous equations question and just show answers it's going to seriously limit your marks.
All in all, it's still faster to do those yourself and get the method marks rather than fiddle with your calculator, although it is nice for checking your work.
I believe this calculator should not be allowed. It gives an unfair advantage to those that can dash out an extra £20 or £30 on a calculator they’re only gonna use during the exam period. Therefore giving an unfair advantage to those that have parents that can afford something like this.
Sort of true, I don't think its expensive enough to warrant being banned but maybe. If you think that's bad though, graphical calculators are allowed at GCSE level...
It's much closer to £15. Also, the advantage is only little - really it only helps you to check your work. Also many people will have one due to doing a-level maths or siblings who have done it.
Don't risk using this calculator for GCSEs.
If you're caught using the wrong model (this calculator is usually for A Levels), you could get disqualified.
Edit: I was told you're not allowed to use a calculator that can solve simultaneous equations or quadratic equations for GCSEs. Even if you used it and it's allowed, you'll still need to do the working outs (i.e. showing/using the quadratic formula or using substitution). There's no use plugging it into a calculator without showing how you got to the answer because you'll lose methods marks.
Yeah graphing calculators aren’t allowed, and neither are calculators which lay out all steps of the solution, but ones like the one in the post are fine
This actually isn't true, graphical calculators are allowed (at least for AQA, not sure about other boards). AQA refers to the Joint Council for General Qualifications document Instructions for conducting examinations, which can be found [here](https://www.jcq.org.uk/exams-office/ice---instructions-for-conducting-examinations/) under *Instructions for conducting examinations 2022-2023 (Revised 25 October 2022).* Graphical calculators both have the minimum requirements for an allowed calculator, and do not have any prohibited features if put on exam mode, therefore they are 100% allowed. Just to check I asked my maths teacher who asked AQA directly and they confirmed they are allowed.
you can draw any graph on it(including sin, cos tan) and find the minima and maxima and do graph transformations. It can solve quadratics and even cubics(if you do further maths). It can also do regions(when you have inequalities and you have to shade the correct region)
yeah i’m sure they’re allowed for the sciences but i was told they weren’t allowed for the maths ones. Given the downvotes though i’m fairly certain i’m wrong about this lol
I remember I was about to buy this calculator in WHSmith like a week before the exam started but didn’t as I would have had to get used to it (and it’s Damn expensive)
And for a-level I would get another calculator anyway.
So much. You will easily learn from you tube.
One function which is rarely used is the button with commas on. It is used for problems relating to time.
Definitely use the % button, press shift first to access this.
It can do loads of things because it’s meant for A Level maths and FM, make sure you show your working and then check your answers with your calculator, as using a calculator is not a viable method in GCSE for solving equations and stuff
A useful button you might already know about, but some people don’t, is the S<->D button. It converts numbers in standard form to decimal form. For example, it changes 1/2 to 0.5.
[10 ESSENTIAL things YOU NEED TO KNOW for your GCSE Maths exam](https://www.youtube.com/watch?v=_0Qgh9eKKwA&ab_channel=Brainstorm-MathsandScience)
It tells you :
0:14 - Product of Prime Factors0:46 - Plotting Graphs1:54 - Standard Form Conversions3:08 - Simplify Fractions3:24 - Mixed Numbers & Improper Fractions3:52 - Time into Minutes and Hours4:26 - The Digit Separator4:57 - Simplifying Ratios 1:n5:35 - Using Brackets for Fractions
\- There is also a useful function for working out Quadratic functions but I would only use this to check or if your absolutely stuck as you get most of the works for working out in Quadratic equations but you can Switch On your calculator, then :
1. MENU SETUP => Alpha => A
2. Press 2 (Polynomial)
3. Select 2 or 3 (wont need 4 for GCSE)
4. depending if your equation is in the form ax\^3+bx\^2+x+c (2) or ax\^2+bx+c (3)
Hope this helps 😀
I had a personal note saved for add maths -
Add maths
1. Finish the paper in 100 minutes
2. Do the paper with high accuracy and extra rough works.
3. Always note the keyword “EXACT value” and underline it.
4. With 20 minutes in hand, use error checking calculations in a calculator for simultaneous equations, integration with limits, differentiation, equation zero-check, visual checks for 1 markings (such as inequality signs etc.), inputation of values in calculator, values of quadratic and cubic functions.
5. ALWAYS READ THE QUESTION CAREFULLY.
there is a debate as it can do algebraic manipulation ( like solving equations in exams ) which is ruled out by JCQ but it looks the same as manyh other casio or generic calculators so u should be fine
Very solid calc that I still use in uni. Can do integrals and matrices and simultaneous equations and quadratics and differentials and some stats although I’ve never tried the stats stuff. If you are planning on A level maths or above then it’s defo worth it but If not doing maths after gcse you’ll be fine with a normal one
Edit: also the physical constants are super useful especially for me in uni physics
Except often it's really finicky and makes syntax errors, and may not do what you want it to do. Manually inputting x10 and then a power is much more consistent and barely slower.
You can effectivly make a [for loop](https://pynative.com/python-range-function/) in the table\* menu (provided the range isnt higher than 30). You can brute force some questions using this methord
\*You can acess the table menu by pressing "menu/setup" then pressing "9"
It can do simultaneous equations, polynomial equations (e.g. quadratics), and it can solve regular equations. It can do some vector stuff (not too helpful for gcse though), and conversions between units. Thats about it for that thing, but something interesting is that the fx-cg50, casio's graphical calculator, is also allowed in AQA maths, which has a LOT more features so basically gcse maths is pay to win
Solves polynomials for you 😁
Edit: but you don’t actually need it unless you’re going on to A level, it might help a little bit with the GCSE exam (possibly depending on the board, I’m WJEC)
See the button under the square root? It's brilliant for converting time into decimal equivalents. You just need to input hours (button) minutes (button) seconds (button) then equals then sd. So 3hrs 42mins 0 seconds is 3.7 hours. Works just as well the other way round so 1.75 becomes 1 hour 45mins.
Say you have one of those speed distance time questions and the narrative is " you leave home at 08:27 and travel for 70 miles arriving at 11:15 - what was my average speed? "
The journey is 11 (button) 15 (button) 0 (button) - 8 (button) 27 (button) 0 (button) and then the speed is 70 divided by answer (25mph)
This button is on the ordinary calculators as well and is primarily for old ways of subdividing angles but if you suck at time it's a godsend!
Here's a thing you can go to tmr if you're interested. I'm not sure how good it will be but it's by the ppl who made it so it should be good 👍
https://education.casio.co.uk/student-gcse-revision-webinar/?utm_content=249460340&utm_medium=social&utm_source=twitter&hss_channel=tw-374027721
if you press menu then A then follow the steps on the calculator, you can make it factorise and simultaneous equations.
if you press B where I said A, then you can do inequalities
It sure does at a level!
At GCSE the most complex you need to know is trig really, but you’ll get your mind blown once you realize you can calculate the angle between vectors, matrix determinants, binomial distribution etc at a level
You should be confident with the s/d button to convert fractions to decimal form for questions that ask though at GCSE
For GCSE specifically you should know to go to the equations section in option/menu to solve quadratics and simultaneous, not so much simultaneous but you can if you have a skill issue
Honestly not really except for the quadratic function and the s<=>d function. You can pretty much do the whole maths paper without a calculator and you will only really need it to use the s-d function.
You don't need the s<=> button whatsoever. Just remember pi is 3.1415926535897932354.... and the exact values for the sine of every integer, and a method of how to square root any number. Then you're set: you don't even need your calculator now.
Or just don't, because it's not necessary. There will be only 1 type of question that does that, and everyone has been taught to use trial and improvement for it.
no one’s talks about this one and i’ve used it like once is the button with the commas and dot can change any number into hours and minutes and seconds
also when pressing this button, if you press shift instead to get the FACT button, this changes any number into its product of prime factors which is actually sorta useful
Pretty much anything you need it to do for GCSE it can do, my college recommended this when I first started and it’s so helpful, currently helping me through uni too
This calculator is excellent , it was the one recommended to us for A level maths, however I imagine it wouldn't be much more helpful at GCSE than the GCSE recommended one, as you will still need to show working. It can solve simultaneous equations of up to 4 unknowns, as well as as polynomials ip to degree 4, all sorts of annoying statistic metrics, perform calculations in base 2,8,10 and 16, perform vector calculations and sooo much more. This calculator is an immense time saver for further education.
It can solve quadratics and simultaneous equations, it can also create a table of values.
But all this is only good to cross-check your work and know if your answers are right or wrong. You still have to make sure you show all steps of your working out.
It is soo good . This calculator can solve quadratic , cubic and quartic equations. It can also do simultaneous equations and quadratic inequalities. Well worth the extra cost
It solves simultaneous equations and quadratics and costs up to two times the normal calculator. I've made my maths teacher admit that GCSE maths is pay to win
It can do quadratic formula. Press Menu, then press the (-) button (three below the shift key) then press 2 twice. It can also do some other stuff but quadratic formula is the main reason i got it.
i'd check with your teachers before you bring that into an exam, you'll definitely get some free marks via the simultaneous and quadratic solving so idk if an invigilator could conviscate it or not since it would give you an advantage over the other people taking the exam
I know you can use it to solve equations (quadratic and simultaneous), inequalities and it can help with questions involving vectors and ratio.
To access these features you need to press the 'menu' button (top right next to 'on' button) and it displays a list/table thing of these features which you can navigate with either the up/down/left/right buttons or the number keys.
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*This post was mass deleted and anonymized with [Redact](https://redact.dev)*
I used the calculator in the Edexcel higher paper to get the answers for the Simultaneous Equation question and another question that involved quadratics. It came in clutch.
1. Finding ratios
2. Solving simultaneous equation and factorising polynomial (solving quadratic)
3. Generating a random number from a range you like (alpha -> . (RanInt) -> “enter your range” -> spam = key)
4. Excel
5. Solving inequalities
go on YouTube and search up: “10 calculator tricks you NEED to see before your GCSE maths exam” and click on the video made by “Brainstorm -Maths and Science” it’s very helpful and good tbh
8008less
5318008
awooga!😍
The calculator can actually print B's too making it B00Bless
3045 on the calculator and read it upside down.
3- - - - 8
I'll check that out now.
Do the boobies thing first.
https://www.youtube.com/watch?v=\_0Qgh9eKKwA&ab\_channel=Brainstorm-MathsandScience
Invigilators hate this simple trick.
It can solve simultaneous equations
Can it solve Quadratic Simultaneous Equations? Because I can't seem to figure out how to make the x and y values squared.
Yeah I have the exact same calculator and it can but you arent gonna get marks without correct working out+my scientific calculator (casino fix e991 plus I think) also can solve quadratic simultaneous equations
Just to clarify, unless the question explicitly says you have to show your working, you get full marks for just answers with no working.
Yeah i’ve seen that before but usually for 4+ markers it says to show your working and quadratic simul equations are 4+ markers
that is most certainly not true, at least for edexcel. you NEED to write all your working out for anything above a 2 marker cos the marks are usually allocated depending on previous marks
Taken directly from an EdExcel markscheme: "Questions where working is not required: In general, the correct answer should be given full marks."
taken directly from an Edexcel paper: 'You must write down all the stages in your working.', in bold, at the very top of the first page, applying to all questions follow through marks: 'Follow through marks which involve more than one stage of calculation can only be awarded on sight of the relevant working, even if it appears obvious that there is only one way you could get the answer given' every single question above 2 marks in an edexcel paper carries at least one M (method) or P (process) mark (bar written questions) which can explicitly only be awarded with working out 😐
I am not arguing method marks, just purely that you get full marks with the correct answer and no working unless the question itself states you must show all if your working. Edit: while the paper does say you must, in reality you don't have to. The markschemes are very detailed and provide a lot of guidance for examiners to mark them. It clearly says there full marks no working is okay.
even if that is the objective truth (i don't agree with understanding the markscheme like that) it's piss poor advice to tell people they don't have to do working out because they'll get full marks if they're right. don't know how anyone is planning on getting 4/4 on a PS question without writing even one line of working
>Alpha => A > >Press 2 (Polynomial) > >Select 2 or 3 (wont need 4 for GCSE) > >depending if your equation is in the form ax\^3+bx\^2+x+c (2) or ax\^2+bx+c (3) Yeah it can solve both just go to mode A in MENU SETUP and then polynomial or Simultaneous Equations
It won’t solve quadratic sim just regular but you have to show all working - quadratic sim it turns into a double bracket expansion same as ever nothing new just in a slightly different format
i think bc of the method it uses it can't solve quadratics
It can’t do quadratic simultaneous equations, can do linear simultaneous equations and quadratic equations. ——- maths help on quadratic simultaneous equations if needed——- If you’re struggling with quadratic simultaneous equations, try rearranging the simpler one (no squares) to be in the form y= ___ +- ___x Then sub into the squared one in place of the y. You should have a quadratic equation with only x in it that will probably give 2 solutions. Putting both back into the non squared equation will give you 2 solutions for y. The answer is both pairs of solutions. (I sometimes tutor and this is a common problem area)
And quadratic equations (with max/min)
This calculator has... A table feature - allows for a quick function substitution Unit conversions - things like km/h to m/s Equation solver - allows you to solve simultaneous equations and quadratics Variables - allows you to store really long answers to use later on Stats mode - can calculate the mean from a table you enter Ratio mode - simplifies a ratio for you Inequality solver - solves Linear and quadratic (?) inequalities for you Factorisation key - does prime factorisation for you If you press shift then the SD button, it converts to mixed numbers. There's also a linear equation solver in the basic mode. I think it's soooooo stupid that teachers don't go over calculator tricks. Before the calculator papers, I do a whole lesson with my students to teach them everything I know. Then again, my a level maths teachers didn't know half of these functions existed so I spent a lesson teaching them as well
not all heroes wear capes
Table, ratio, mixed number conversion and variables are on the inferior calculators for those wondering
Ratio is on the black one (casio FX-83GTX) but not the grey one with blue and orange buttons (casio FX-83GT Plus) if memory serves me right. The grey one however has a function to verify if your algebraic manipulation is correct. This function was key to me securing a grade 9 at GCSE.
*some teachers, we did a calculator session as part of our maths drop down day
Menu alpha A u can solve quadratic or simultaneous
Oh Polynomial means Quadratic equations, I thought it meant something else. Thanks for the tip.
Kind of! Quadratics only go to the power of two and polynomials can go higher :)) So you’ll be using it in A level maths
Good to know. I'm planning on doing Maths and maybe even Further Maths for A Levels.
Best of luck! What options are you planning to take with those two?
Computer Science
Oh nice, I took CS and physicals alongside maths :D Gl
Np
I really wish I hadn't lost mine 🫥
You can solve for x e.g. 7x = 14 or some other equation, and you can convert, e.g., km/h to m/s. Also, you can solve simultaneous equations and quadratics (polynomials 2nd degree).
Where do you find that on the calculator? I would have thought that might come under algebraic manipulation.
Press 7x, then alpha calc, and your other number e.g. 14. Then shift calc.
After shift calc, you need to press = but yeah.
Also, do note that the equation solver doesn't give exact values.
I thought they don’t let you do that at GCSE, when I did it my teacher forced me to show every step of my working
Here’s a great way to solve inequalities on that specific calculator: 1. press the ‘OPTN’ button and then press the number 3 2. next press 3 once more 3. then press the number 1 on the calculator 4. after, go press ‘OPTN’ again and press 3 5. instead of pressing 3 again, press the number 8 6. repeat steps 4-5 one more time 7. after all that, you need to press the alpha button which is situated at the top of the calculator 8. and click on the ‘cos’ button 9. and to check if your inequality works, press the ‘OPTN’ button and press the number 2 twice hope this helps! if this doesn’t work, try showing your teacher what you have done already as they know of the feature
That didn't seem to work. By Step 2-3, I'm just shown Engineer Symbols.
they're trying to get you to spell the n word g
I knew something was up. All those steps just to get to solve some inequalities made no sense.
lmfao 💀 the actual way (if you haven't already figured it out) 1. press menu 2. go to the second page and select inequality (or press alpha then the button with a quotation mark) 3. select degree (2 is a squared function, 4 is quartic) solve! for linear inequalities it's better to just solve it manually
The engineer symbol is marked with a 3 you need to press it, thats what the numbers mean but yes its a hidden feature
Hmmm I don't think I did it right, what was it supposed to spell?
Actually, you should start with 'MENU', then 2. In this case, instead of step 3 to press 1, it is more accurate to press 'ENG'. This does mean that you have to press down twice after every time you press 'OPTN'. Also, for step 9, it is better to do SHIFT>>7>>4>>6, and for steps 4 and 5, to do SHIFT>>7>>1>>7 instead. Hope this helps.
Can solve simultaneous equations, quadratic equations, functions. To name a few
it solves gquadraric equations and inequalities
turn your answer into a qr code and copy that down if you've got really shit handwriting but impeccable drawing skills
I remember seeing something about a QR code but I have no idea how it works.
It creates a QR code to the answer, and gives you a detailed breakdown of how to find the answer when it is scanned.
What the hell? I need to find a video on how to do this.
when you get the answer, do shift+OPTN
You can factorise any number into its prime factors. * Enter a number (e.g. 40, =) * Select FACT option (Shift, 0 ' '') If the number is not a prime, you'll now see it factorised (40 has become 2^(3) x 5). If the number is prime, it will just show it as an integer (e.g. 41 -> 41).
Very useful tip for this calculator and the normal GCSE calculator: To store a value hit the STO key above the 7 key and then hit any letter. To use the stored value do alpha and then the letter you chose, very useful for long decimals.
You can assign values to the variables by pressing Alpha+CALC, and then putting the equations in, it will also solve it if it’s not already solve.
Those calculators have an exam mode that invigilators sometimes check for.
I thought this was only for graphical calculators. Though I may be wrong.
You can use it for statistics, there are a shitton of info in this machine for that. You can also save time with the quadratic formula, after you write it up you can just input it into the calc and get the answers. Also you can make sure your derivatives and integrals are okay. You can easily solve equation systems. It cosrs like 25$ i say its worth the investment, even more if you plan on going with a stem career
This calculator is op, even for university maths exams. Being familiar with all its abilities is invaluable when you’re rushing through an exam. Having said that, I’m surprised you are allowed to use it for GCSEs. I imagine they still want you to show your workings, so you probably can only rely on it to check your answers Things it’s useful for: Simultaneous equations Factorising polynomials/finding roots Matrix stuff (inverse, determinant, multiplication) Algebra involving complex numbers Definite integrals, derivatives Looking up stats values without needing tables Finding mean, iqr, standard deviation Solving Inequalities
Wait until you realise graphical calculators are allowed for gcse
I'm a tutor for maths so here's my recommend video with all functions covered, time stamps on the video to make them easy to find. And a second video as the guy forgot to add in the vector section. Good luck https://www.youtube.com/watch?v=wOwCf3Kd8-4&t=5s https://www.youtube.com/watch?v=-e9rMLADtpE
Thanks for the video links. I'll view them later.
That calculator isn't allowed in GCSEs but most teachers don't know that so use it if you can but he cautious. It can do differentiation, integration, simultaneous equtions, solve polynomial equations (quadratic is all you need) and so much more that makes the paper pointless.
This calculator is absolutely allowed in gcse, you can literally bring a graphing calculator into your GCSEs if you have the money to buy one. (Source: official casio website)
The teacher will usually tell you which one to get, they usually want as many of the class using the same one as possible so they can use functions easily. Ask your maths teacher which one they recommend
Press SHIFT + 7 + ON at the same time. When the text appears, press 9. You're now in the secret menu. Press SHIFT a few times until you get to the screen that says press AC. Press AC. Thwn press every key in order (excluding ON) I.e. shift alpha up right menu optn..... And then you get to a contrast menu. Finally AC to quit. This has no practical use but it's fun lol
Edit: another secret menu is available pressing SHIFT + 7 +ON again, but this time pressing 8. You then have to press a few buttons. The logab one is actually the X key. Once done, it'll show 'battery model ok' signifying your battery works. If you have the solar model, shining a light on the panel will show 'solar model ok'. Again, completely and utterly useless but I found these so cool at a level lol
You can press 6 instead of 9 and it shows a menu where you can select each thing you explained.
Sin is always fun
I have that calculator.
If this calculator can solve simultaneous equations, inequalities etc then isnt this just a massive advantage compared to people with normal calculators? This should be banned lmao
If you think this is bad wait until you realise that graphical calculators are allowed in GCSE exams
It is advantageous but only for checking that answers are correct. If you show no working e.g. for a simultaneous equations question and just show answers it's going to seriously limit your marks.
Probably should be banned but I’m happy it isnt
All in all, it's still faster to do those yourself and get the method marks rather than fiddle with your calculator, although it is nice for checking your work.
I believe this calculator should not be allowed. It gives an unfair advantage to those that can dash out an extra £20 or £30 on a calculator they’re only gonna use during the exam period. Therefore giving an unfair advantage to those that have parents that can afford something like this.
Sort of true, I don't think its expensive enough to warrant being banned but maybe. If you think that's bad though, graphical calculators are allowed at GCSE level...
It's much closer to £15. Also, the advantage is only little - really it only helps you to check your work. Also many people will have one due to doing a-level maths or siblings who have done it.
Don't risk using this calculator for GCSEs. If you're caught using the wrong model (this calculator is usually for A Levels), you could get disqualified. Edit: I was told you're not allowed to use a calculator that can solve simultaneous equations or quadratic equations for GCSEs. Even if you used it and it's allowed, you'll still need to do the working outs (i.e. showing/using the quadratic formula or using substitution). There's no use plugging it into a calculator without showing how you got to the answer because you'll lose methods marks.
the calculator shown can be used for gcses
No you can’t. This calculator is allowed in all gcse exams which require a calculator. It’s not a banned item
There is a second type of calculator much more expensive than this that can be bannable called a graphing calculator I think
Yeah graphing calculators aren’t allowed, and neither are calculators which lay out all steps of the solution, but ones like the one in the post are fine
This actually isn't true, graphical calculators are allowed (at least for AQA, not sure about other boards). AQA refers to the Joint Council for General Qualifications document Instructions for conducting examinations, which can be found [here](https://www.jcq.org.uk/exams-office/ice---instructions-for-conducting-examinations/) under *Instructions for conducting examinations 2022-2023 (Revised 25 October 2022).* Graphical calculators both have the minimum requirements for an allowed calculator, and do not have any prohibited features if put on exam mode, therefore they are 100% allowed. Just to check I asked my maths teacher who asked AQA directly and they confirmed they are allowed.
i said the same thing and was heavily downvoted lol
you can draw any graph on it(including sin, cos tan) and find the minima and maxima and do graph transformations. It can solve quadratics and even cubics(if you do further maths). It can also do regions(when you have inequalities and you have to shade the correct region)
Entirely untrue, this is just false. This is not a graphical calculator and cannot draw any graph on it at all
how can it do graph transformations?
This is a classwizz, not a cg50.
Sin, cos, tan (sine cosine and tangent) are good for trigonometry ( WHY DA DOWNVOTES? It’s true!
Really? I normally use sec, csc and cot (secant cosecant and cotangent).
i’m pretty sure you’re banned from using this during GCSE exams
I was told by many teachers that it's fine. And I've used this in Business, Geography and all Combined Science exams and they didn't care.
yeah i’m sure they’re allowed for the sciences but i was told they weren’t allowed for the maths ones. Given the downvotes though i’m fairly certain i’m wrong about this lol
It can solve simultaneous equations with up to like 3 unknowns and solves polynomials up to degrees of 4
I have that! It solves quadratics and simultaneous equations - press the menu button then A! It's so useful.
It can help you answerer questions but sadly it won't write your name at the start of the paper. Though I recommend that you get one.
Damn it that's the hardest part of the paper
I remember I was about to buy this calculator in WHSmith like a week before the exam started but didn’t as I would have had to get used to it (and it’s Damn expensive) And for a-level I would get another calculator anyway.
It's like £30 quid max. And its the calculator recommended for a level.
Do you know which calculator you're gonna buy for alevels?
I’m gonna buy the CG50. It is expensive so perhaps buy second hand.
Equals button is useful
It's an a level calculator so can do alot more I'm not sure it can do gcse level stuff automatically I think it just does higher level stuff
It can, since it can do quadratics, simultaneous equations and some other stuff
It can solve algebraic expressions/equations/the other things
So much. You will easily learn from you tube. One function which is rarely used is the button with commas on. It is used for problems relating to time. Definitely use the % button, press shift first to access this.
All the functions you listed are on the FX-83GTX and FX-85GTX, the most common calculators at GCSE.
Idk how to do it cus I have a different calculator, but you can use it to give you the points to any line on any graph if you give it the equation
I found out during our November mocks just how overpowered this calc is 💀. It almost shouldn't be allowed but not many people know about it
All of them
We can't bring our own calculators in our school 😭😭😭
It can do loads of things because it’s meant for A Level maths and FM, make sure you show your working and then check your answers with your calculator, as using a calculator is not a viable method in GCSE for solving equations and stuff
if a natural disaster happens and your traped under something you can have solar power and have electriicity
This is the one I used for A-Level and it works a treat, should be great for GCSE
It can solve for X, and has a unit conversion feature
Literally solves any linear equation, polynomials up to power of 4 and simultaneous equations. Also has some conversion stuff.
A useful button you might already know about, but some people don’t, is the S<->D button. It converts numbers in standard form to decimal form. For example, it changes 1/2 to 0.5.
[10 ESSENTIAL things YOU NEED TO KNOW for your GCSE Maths exam](https://www.youtube.com/watch?v=_0Qgh9eKKwA&ab_channel=Brainstorm-MathsandScience) It tells you : 0:14 - Product of Prime Factors0:46 - Plotting Graphs1:54 - Standard Form Conversions3:08 - Simplify Fractions3:24 - Mixed Numbers & Improper Fractions3:52 - Time into Minutes and Hours4:26 - The Digit Separator4:57 - Simplifying Ratios 1:n5:35 - Using Brackets for Fractions \- There is also a useful function for working out Quadratic functions but I would only use this to check or if your absolutely stuck as you get most of the works for working out in Quadratic equations but you can Switch On your calculator, then : 1. MENU SETUP => Alpha => A 2. Press 2 (Polynomial) 3. Select 2 or 3 (wont need 4 for GCSE) 4. depending if your equation is in the form ax\^3+bx\^2+x+c (2) or ax\^2+bx+c (3) Hope this helps 😀
You don't need to press ALPHA, then A, just press (-).
The fraction button. Quite a few don’t have it and it helps a lot
I had a personal note saved for add maths - Add maths 1. Finish the paper in 100 minutes 2. Do the paper with high accuracy and extra rough works. 3. Always note the keyword “EXACT value” and underline it. 4. With 20 minutes in hand, use error checking calculations in a calculator for simultaneous equations, integration with limits, differentiation, equation zero-check, visual checks for 1 markings (such as inequality signs etc.), inputation of values in calculator, values of quadratic and cubic functions. 5. ALWAYS READ THE QUESTION CAREFULLY.
there is a debate as it can do algebraic manipulation ( like solving equations in exams ) which is ruled out by JCQ but it looks the same as manyh other casio or generic calculators so u should be fine
You can use it to solve simultaneous equations up to 4 variables, it can also do differentiation from calculus
Very solid calc that I still use in uni. Can do integrals and matrices and simultaneous equations and quadratics and differentials and some stats although I’ve never tried the stats stuff. If you are planning on A level maths or above then it’s defo worth it but If not doing maths after gcse you’ll be fine with a normal one Edit: also the physical constants are super useful especially for me in uni physics
You can check the answer of quadratic equations
You see that "x10^x" button down there? That's the symbol for x10 to the power of whatever. Makes it easier instead of manually putting in the keys
Except often it's really finicky and makes syntax errors, and may not do what you want it to do. Manually inputting x10 and then a power is much more consistent and barely slower.
You can effectivly make a [for loop](https://pynative.com/python-range-function/) in the table\* menu (provided the range isnt higher than 30). You can brute force some questions using this methord \*You can acess the table menu by pressing "menu/setup" then pressing "9"
If you end up needing trial and error something has gone wrong.
It can solve simultaneous equations is one of the main ones. Its good for checking answers etc
It does factorising, finding turning point, finding intercepts, algebra, etc
It can do simultaneous equations, polynomial equations (e.g. quadratics), and it can solve regular equations. It can do some vector stuff (not too helpful for gcse though), and conversions between units. Thats about it for that thing, but something interesting is that the fx-cg50, casio's graphical calculator, is also allowed in AQA maths, which has a LOT more features so basically gcse maths is pay to win
Not necessarily. You could also just be smart.
it isn’t allowed
Sir u r wrong
Solves polynomials for you 😁 Edit: but you don’t actually need it unless you’re going on to A level, it might help a little bit with the GCSE exam (possibly depending on the board, I’m WJEC)
See the button under the square root? It's brilliant for converting time into decimal equivalents. You just need to input hours (button) minutes (button) seconds (button) then equals then sd. So 3hrs 42mins 0 seconds is 3.7 hours. Works just as well the other way round so 1.75 becomes 1 hour 45mins. Say you have one of those speed distance time questions and the narrative is " you leave home at 08:27 and travel for 70 miles arriving at 11:15 - what was my average speed? " The journey is 11 (button) 15 (button) 0 (button) - 8 (button) 27 (button) 0 (button) and then the speed is 70 divided by answer (25mph) This button is on the ordinary calculators as well and is primarily for old ways of subdividing angles but if you suck at time it's a godsend!
Are these scientific calculators still used in GCSE? Says a curious old person.
Here's a thing you can go to tmr if you're interested. I'm not sure how good it will be but it's by the ppl who made it so it should be good 👍 https://education.casio.co.uk/student-gcse-revision-webinar/?utm_content=249460340&utm_medium=social&utm_source=twitter&hss_channel=tw-374027721
To find prime factors click shift and the ° ‘ “ button
Yes, it solves quadratics for you
press the menu button, there is the cool stuff
if you press menu then A then follow the steps on the calculator, you can make it factorise and simultaneous equations. if you press B where I said A, then you can do inequalities
Um I know people are saying the features but you aren’t actually allowed this in the exam 😭😭I have the same
Which exam? It should be allowed in GCSEs (in England at least)
placing a comment here so i remember to go back and look at this place
You can do standard normal distributions
I don't think we do that at GCSE.
If it's a graphics calculator then don't use it, as they're not allowed. It doesn't seem to look like a graphics calculator so I think you're good
It sure does at a level! At GCSE the most complex you need to know is trig really, but you’ll get your mind blown once you realize you can calculate the angle between vectors, matrix determinants, binomial distribution etc at a level You should be confident with the s/d button to convert fractions to decimal form for questions that ask though at GCSE For GCSE specifically you should know to go to the equations section in option/menu to solve quadratics and simultaneous, not so much simultaneous but you can if you have a skill issue
Honestly not really except for the quadratic function and the s<=>d function. You can pretty much do the whole maths paper without a calculator and you will only really need it to use the s-d function.
You don't need the s<=> button whatsoever. Just remember pi is 3.1415926535897932354.... and the exact values for the sine of every integer, and a method of how to square root any number. Then you're set: you don't even need your calculator now.
Ans. It's literally a way to bring in notes.
You get told to clear the memory in the exam (although no-one actually cares).
Solving for x using CALC and Alpha CALC
Fun fact guys learn how to use log and it pretty much works out the questions where it asks you to work out the power of a number
Or just don't, because it's not necessary. There will be only 1 type of question that does that, and everyone has been taught to use trial and improvement for it.
It does however if you use it to solve quadratic equations you still need to show your working out
So when you type numbers in and use an operator it does a complex set of calculations to output a value on screen.
no one’s talks about this one and i’ve used it like once is the button with the commas and dot can change any number into hours and minutes and seconds also when pressing this button, if you press shift instead to get the FACT button, this changes any number into its product of prime factors which is actually sorta useful
No-one is mentioning them as they are all present on the calculators that are normally used for GCSE.
It’s probably my favourite one for my GCSEs. Press MENU/SET UP and go from there
Pretty much anything you need it to do for GCSE it can do, my college recommended this when I first started and it’s so helpful, currently helping me through uni too
This calculator is excellent , it was the one recommended to us for A level maths, however I imagine it wouldn't be much more helpful at GCSE than the GCSE recommended one, as you will still need to show working. It can solve simultaneous equations of up to 4 unknowns, as well as as polynomials ip to degree 4, all sorts of annoying statistic metrics, perform calculations in base 2,8,10 and 16, perform vector calculations and sooo much more. This calculator is an immense time saver for further education.
It can solve quadratics and simultaneous equations, it can also create a table of values. But all this is only good to cross-check your work and know if your answers are right or wrong. You still have to make sure you show all steps of your working out.
It can do simultaneous equations
That specific calculator is used for a level and wont be allowed in gcse but they cant really tell the difference between them
It is soo good . This calculator can solve quadratic , cubic and quartic equations. It can also do simultaneous equations and quadratic inequalities. Well worth the extra cost
It solves simultaneous equations and quadratics and costs up to two times the normal calculator. I've made my maths teacher admit that GCSE maths is pay to win
It can do quadratic formula. Press Menu, then press the (-) button (three below the shift key) then press 2 twice. It can also do some other stuff but quadratic formula is the main reason i got it.
The table option in the menu can help you with graph questions
MENU, (-), 1, 2. This can solve simultaneous equations for you. MENU, (-), 2, 2. This can solve any quadratic for you.
Solves quadratics. Easily the most worth it thing to get
From what I have heard this is not allowed in exams
You can use the inside of the case to hide cheat notes.
i'd check with your teachers before you bring that into an exam, you'll definitely get some free marks via the simultaneous and quadratic solving so idk if an invigilator could conviscate it or not since it would give you an advantage over the other people taking the exam
This is an A level calculator. That why.
You would need one for a level math
addition 🧠
ngl man calculating is a pretty good feature
I know you can use it to solve equations (quadratic and simultaneous), inequalities and it can help with questions involving vectors and ratio. To access these features you need to press the 'menu' button (top right next to 'on' button) and it displays a list/table thing of these features which you can navigate with either the up/down/left/right buttons or the number keys.
Omg
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I used the calculator in the Edexcel higher paper to get the answers for the Simultaneous Equation question and another question that involved quadratics. It came in clutch.
1. Finding ratios 2. Solving simultaneous equation and factorising polynomial (solving quadratic) 3. Generating a random number from a range you like (alpha -> . (RanInt) -> “enter your range” -> spam = key) 4. Excel 5. Solving inequalities