Keystones — Capstone
Five GCSE retrieval questions · 11 July 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Factorise fully: 10x² + 35x
Answer: 5x(2x + 7) -
3. Geometry
Adjacent = 30cm, hypotenuse = 39cm. Find the angle
Answer: 39.7° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 6 blue and 5 green sections. Probability of landing on red?
Answer: 2⁄13