Keystones — Lintel
Five GCSE retrieval questions · 2 January 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 789 + 794
Answer: 789 + 794 = 1583 -
2. Algebra
Solve: 8x = 32
Answer: x = 4 -
3. Geometry
Opposite = 14cm, adjacent = 9cm. Calculate the angle
Answer: 57.3° -
4. Ratio
Calculate 11.5% of 287
Answer: 33.01 -
5. Statistics
A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 7⁄15