Keystones — Cornerstone
Five GCSE retrieval questions · 8 August 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 699 + 670
Answer: 699 + 670 = 1369 -
2. Algebra
Solve: 6x + 4 = 2x + 36
Answer: x = 8 -
3. Geometry
Opposite = 11cm, hypotenuse = 15.6cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 14:10
Answer: 7:5 -
5. Statistics
Calculate the mean of: 22, 47, 29, 20, 44, 26, 5
Answer: 27.6