Keystones — Cornerstone
Five GCSE retrieval questions · 4 April 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 97 + 44
Answer: 97 + 44 = 141 -
2. Algebra
Solve: 5x = 40
Answer: x = 8 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 12cm and 7cm
Answer: 42cm² -
4. Ratio
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics
Find the mean of: 4, 15, 8
Answer: 9