Keystones — Capstone
Five GCSE retrieval questions · 7 November 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 114. What are the numbers?
Answer: 37, 38, and 39 -
2. Algebra
Factorise fully: 4x² + 14x
Answer: 2x(2x + 7) -
3. Geometry
A right triangle has hypotenuse 13cm and one side 5cm. Find its area
Answer: 30cm² -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 5 blue and 3 green sections. Probability of landing on red?
Answer: 1⁄5