Keystones — Capstone
Five GCSE retrieval questions · 15 March 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 138. What are the numbers?
Answer: 45, 46, and 47 -
2. Algebra
Solve: x⁄5 = 6.6
Answer: x = 33 -
3. Geometry
Adjacent = 18cm, hypotenuse = 27cm. Find the angle
Answer: 48.2° -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 6 blue and 2 green sections. Probability of landing on red?
Answer: 3⁄7