Keystones — Cornerstone
Five GCSE retrieval questions · 27 June 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 2 + 5
Answer: 7 -
2. Algebra
For y = x³, find y when x = 2
Answer: y = 8 -
3. Geometry
Calculate the hypotenuse when a = 5cm and b = 7cm
Answer: 8.6cm -
4. Ratio
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics
Calculate the mean of: 28, 17, 13, 35, 42, 45
Answer: 30