Keystones — Capstone
Five GCSE retrieval questions · 7 April 2026 · mathsvault.uk/keystones
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1. Number
Simplify: y4 × y2 × y2
Answer: y8 -
2. Algebra
Simplify: 11x - 8x + 10y - 8y
Answer: 3x + 2y -
3. Geometry
Adjacent = 28cm, hypotenuse = 44cm. Find the angle
Answer: 50.5° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 39. If 4 of them are 23, 23, 17, 45, what is the missing number?
Answer: 87