Keystones — Capstone
Five GCSE retrieval questions · 23 July 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Complete the square: x² + 3.8x
Answer: (x + 1.9)² - 3.61 -
3. Geometry
Adjacent = 29cm, hypotenuse = 34cm. Find the angle
Answer: 31.5° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 4 blue and 2 green sections. Probability of landing on red?
Answer: 1⁄3