United Kingdom — AQA, Edexcel
Free online calculators for GCSE Mathematics. Practice percentage, ratio, algebra, trigonometry and statistics questions with step-by-step solutions.
Ages 14-16 · May to June (approx. 7 May — 10 June 2026)
Scientific calculators are allowed on Papers 2 and 3. Paper 1 is a non-calculator paper.
These 10 calculators cover the key topics you will encounter on Papers 2 and 3. Each provides step-by-step workings to help you learn the method.
Calculate percentages instantly. Find what percent of a number, percentage change, and percentage difference. Free, fast, no signup.
Add, subtract, multiply, and divide fractions. Simplify fractions and convert to mixed numbers. Free online fraction calculator.
Simplify ratios and find missing values in proportions. Free online ratio calculator with step-by-step results.
Solve quadratic equations using the quadratic formula. Find roots, discriminant, and vertex. Free online quadratic formula calculator.
Solve algebraic equations for x. Handles linear, quadratic, polynomial, and simple equations. Free online equation solver.
Calculate triangle sides, angles, area, and perimeter. Supports SSS, SAS, ASA, AAS configurations. Free online triangle calculator.
Calculate probability of events, complements, unions, and intersections. Free online probability calculator for statistics.
Calculate standard deviation, variance, mean, and more for any dataset. Supports population and sample statistics. Free online tool.
Calculate slope from two points, find slope-intercept and point-slope form. Free online slope calculator with graphing.
Find all factors, prime factorisation, factor pairs, GCD, and LCM. Free online factor calculator with instant results.
Practice with these GCSE-style questions. Each example shows the full working and links to the relevant calculator.
Problem:
A shop reduces all prices by 15%. A jacket originally costs £240. What is the sale price?
Solution:
Find 15% of 240 = 36. Sale price = 240 − 36 = £204. Alternatively: 85% of 240 = 0.85 × 240 = £204.
Answer: £204
Problem:
Share £180 in the ratio 2:3:4.
Solution:
Total parts = 2 + 3 + 4 = 9. One part = 180 ÷ 9 = £20. Shares: £40, £60, £80.
Answer: £40, £60, £80
Problem:
Solve x² − 5x + 6 = 0
Solution:
Using the quadratic formula or factorising: (x − 2)(x − 3) = 0, so x = 2 or x = 3.
Answer: x = 2 or x = 3
Problem:
£5000 is invested at 3.5% compound interest per year. Calculate the value after 4 years.
Solution:
5000 × (1.035)⁴ = 5000 × 1.14752... = £5737.62 (to nearest penny)
Answer: £5737.62
Problem:
In a right-angled triangle, the hypotenuse is 13 cm and one side is 5 cm. Find the other side.
Solution:
Using Pythagoras: a² + 5² = 13². a² = 169 − 25 = 144. a = √144 = 12 cm.
Answer: 12 cm
Common questions about GCSE Maths exams and calculator use.
Yes, but only on Papers 2 and 3. Paper 1 is a non-calculator paper. Both AQA and Edexcel follow this format.
Scientific calculators are allowed and recommended. Graphing calculators are also permitted but not required. Phone calculators are NOT allowed.
GCSE Maths exams typically run from May to June. For 2026, the window is approximately 7 May to 10 June.
GCSE Maths covers number, algebra, ratio and proportion, geometry and measures, probability, and statistics. Higher tier includes additional topics like quadratic equations, trigonometry, and advanced algebra.
There are 3 papers, each 1 hour 30 minutes and worth 80 marks. Paper 1 is non-calculator, Papers 2 and 3 allow calculator use.
A grade 4 is considered a standard pass, and grade 5 is a strong pass. Grades range from 1 to 9, with 9 being the highest.