Keystones — Cornerstone
Five GCSE retrieval questions · 4 April 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 69 + 86
Answer: 69 + 86 = 155 -
2. Algebra
Simplify: 4x + 9x
Answer: 13x -
3. Geometry
Opposite = 17cm, adjacent = 13cm. Calculate the angle
Answer: 52.6° -
4. Ratio
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics
Find the mean of: 7, 17, 11, 2, 16
Answer: 10.6