Keystones — Cornerstone
Five GCSE retrieval questions · 11 June 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 88 + 33
Answer: 88 + 33 = 121 -
2. Algebra
Solve: x + 8 = 23
Answer: x = 15 -
3. Geometry
Opposite = 13cm, hypotenuse = 18.4cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 32:12
Answer: 8:3 -
5. Statistics
Find the mean of: 13, 10, 19, 17, 10
Answer: 13.8