Keystones — Capstone
Five GCSE retrieval questions · 8 February 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Solve: x⁄3 = 8
Answer: x = 24 -
3. Geometry
Adjacent = 25cm, hypotenuse = 30cm. Find the angle
Answer: 33.6° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 5 blue and 3 green sections. Probability of landing on red?
Answer: 5⁄13