Keystones — Cornerstone
Five GCSE retrieval questions · 30 January 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 81 + 61
Answer: 81 + 61 = 142 -
2. Algebra
For y = x³, find y when x = 3
Answer: y = 27 -
3. Geometry
Opposite = 17cm, adjacent = 12cm. Calculate the angle
Answer: 54.8° -
4. Ratio
Simplify the ratio 24:20
Answer: 6:5 -
5. Statistics
Calculate the mean of: 37, 22, 17, 25, 43, 17, 33, 46
Answer: 30