Keystones — Cornerstone
Five GCSE retrieval questions · 4 April 2026 · mathsvault.uk/keystones
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1. Number
Find the total of 200, 260, and 105
Answer: 565 -
2. Algebra
Solve: x + 14 = 34
Answer: x = 20 -
3. Geometry
Opposite = 13cm, hypotenuse = 15cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Find 47% of 363
Answer: 170.61 -
5. Statistics
Calculate the mean of: 7, 50, 14, 46, 16, 9, 35, 11
Answer: 23.5