Keystones — Capstone
Five GCSE retrieval questions · 13 November 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Factorise fully: 15x² + 35x
Answer: 5x(3x + 7) -
3. Geometry
Adjacent = 27cm, hypotenuse = 37cm. Find the angle
Answer: 43.1° -
4. Ratio
Calculate 19.8% of 746
Answer: 147.71 -
5. Statistics
A spinner has 4 red, 4 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄3