Keystones — Lintel
Five GCSE retrieval questions · 8 February 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 105. What are the numbers?
Answer: 34, 35, and 36 -
2. Algebra
Solve: x⁄2 = 18.5
Answer: x = 37 -
3. Geometry
Opposite = 18cm, adjacent = 18cm. Calculate the angle
Answer: 45° -
4. Ratio
Simplify: 24:20:8
Answer: 6:5:2 -
5. Statistics
A spinner has 3 red, 2 blue and 3 green sections. Probability of landing on red?
Answer: 3⁄8