Keystones — Capstone
Five GCSE retrieval questions · 11 February 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 144. What are the numbers?
Answer: 47, 48, and 49 -
2. Algebra
Factorise fully: 16x² + 16x
Answer: 4x(4x + 4) -
3. Geometry
Adjacent = 12cm, hypotenuse = 30cm. Find the angle
Answer: 66.4° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 4 red, 6 blue and 3 green sections. Probability of landing on red?
Answer: 4⁄13