Keystones — Capstone
Five GCSE retrieval questions · 11 November 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 120. What are the numbers?
Answer: 39, 40, and 41 -
2. Algebra
Factorise fully: 10x² + 15x
Answer: 5x(2x + 3) -
3. Geometry
Adjacent = 15cm, hypotenuse = 26cm. Find the angle
Answer: 54.8° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 5 blue and 3 green sections. Probability of landing on red?
Answer: 1⁄5