Keystones — Cornerstone
Five GCSE retrieval questions · 8 February 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 70 + 29
Answer: 70 + 29 = 99 -
2. Algebra
Find the next term: 28, 33, 38, 43, ...
Answer: 48 -
3. Geometry
Opposite = 11cm, hypotenuse = 15.6cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify: 16:20:20
Answer: 4:5:5 -
5. Statistics
Calculate the mean of: 20, 22, 36, 44, 24, 15
Answer: 26.8