Keystones — Lintel
Five GCSE retrieval questions · 25 June 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 352 + 415
Answer: 352 + 415 = 767 -
2. Algebra
For y = 3x³ + 12, find y when x = 3
Answer: y = 93 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 12cm and 13cm
Answer: 78cm² -
4. Ratio
Find 33% of 314
Answer: 103.62 -
5. Statistics
A spinner has 6 red, 6 blue and 3 green sections. Probability of landing on red?
Answer: 2⁄5