Keystones — Capstone
Five GCSE retrieval questions · 8 October 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Factorise fully: 6x² + 4x
Answer: 2x(3x + 2) -
3. Geometry
Adjacent = 12cm, hypotenuse = 28cm. Find the angle
Answer: 64.6° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 4 blue and 3 green sections. Probability of landing on red?
Answer: 6⁄13