Keystones — Capstone
Five GCSE retrieval questions · 10 January 2023 · 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: 12x² + 15x
Answer: 3x(4x + 5) -
3. Geometry
Adjacent = 18cm, hypotenuse = 26cm. Find the angle
Answer: 46.2° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 2 blue and 6 green sections. Probability of landing on red?
Answer: 3⁄11