Keystones — Lintel
Five GCSE retrieval questions · 14 November 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 928 + 186
Answer: 928 + 186 = 1114 -
2. Algebra
For y = x³ + 2, calculate y when x = 2
Answer: y = 10 -
3. Geometry
Find c if a = 10cm and b = 13cm in a right triangle
Answer: 16.4cm -
4. Ratio
Find 58% of 56
Answer: 32.48 -
5. Statistics
A spinner has 2 red, 5 blue and 5 green sections. Probability of landing on red?
Answer: 1⁄6