Keystones — Capstone
Five GCSE retrieval questions · 31 March 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 129. What are the numbers?
Answer: 42, 43, and 44 -
2. Algebra
Factorise fully: 21x² + 12x
Answer: 3x(7x + 4) -
3. Geometry
Adjacent = 23cm, hypotenuse = 28cm. Find the angle
Answer: 34.8° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 2 blue and 3 green sections. Probability of landing on red?
Answer: 1⁄2