Keystones — Capstone
Five GCSE retrieval questions · 21 January 2023 · 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
Factorise fully: 14x² + 10x
Answer: 2x(7x + 5) -
3. Geometry
Adjacent = 23cm, hypotenuse = 28cm. Find the angle
Answer: 34.8° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 6 blue and 4 green sections. Probability of landing on red?
Answer: 3⁄13