The best calculator for gcse mathematics and A-level mathematics is the Casio FX-991EX. You won't find a better calculator for your combined studies than this one, and that's a fact. The Edexcel GCSE mathematics exam is divided into three separate papers, each part having a value of 80 points and a weight of 33.3 percent. This calculator has the right amount of functions and features needed for GCSE Maths, but it can leave you wanting when it comes to your real exams.
This calculator is the best choice for GCSE (in my opinion), and it can even take you far in A-level math. Students and parents are often concerned about which calculators are allowed on exams and all calculators on this page are allowed on all GCSE, IGCSE and A calculator exams in the United Kingdom. This calculator is a safe option for GCSE Maths, and is probably the most common calculator people buy. If you have the right calculator and you know how to use it, you can avoid being among the 40.4% of students who don't pass their math tests.
This feature is especially useful if you plan to take A-Level Mathematics in college, but it can also be useful at the GCSE level. This calculator barely meets the requirements for what you need in GCSE mathematics, but it will almost help you overcome it. The Casio FX-85GT Plus still has great functionality (for a GCSE calculator) and will allow you to outperform your GCSE. These calculators are not allowed on any math test and could cause you to be disqualified if the examiners discover that you are using one.
If you want to leave math behind after school, you could probably leave this calculator together with it. For GCSE mathematics, you'll need a scientific calculator, but almost any model will do; see the AQA guide below for a list of the functions you need. “For the purposes of the present specification, a “" calculator "” is any electronic or mechanical device that can be used to perform mathematical calculations.” The biggest drawback of this calculator for GCSE compared to the FX-991 is that it doesn't have the equation solver. So if there's any chance you'll stick with Math beyond GCSE, then it's worth investing.
If you are looking for a more detailed guide on calculators for student life after school, I have a useful article on the best calculator for level A math and additional level A mathematics.