Keystones — Lintel
Five GCSE retrieval questions · 10 June 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 755 + 565
Answer: 755 + 565 = 1320 -
2. Algebra
Solve: x⁄4 = 9.25
Answer: x = 37 -
3. Geometry
Opposite = 13cm, adjacent = 13cm. Calculate the angle
Answer: 45° -
4. Ratio
Simplify: 4:6:10
Answer: 2:3:5 -
5. Statistics
A bag has 6 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2