Keystones — Cornerstone
Five GCSE retrieval questions · 8 November 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 21 + 37
Answer: 21 + 37 = 58 -
2. Algebra
Solve: x + 9 = 22
Answer: x = 13 -
3. Geometry
Find the area of a right triangle with base 5cm and height 11cm
Answer: 27.5cm² -
4. Ratio
Simplify the ratio 10:6
Answer: 5:3 -
5. Statistics
Calculate the mean of: 19, 23, 36, 34, 32, 17, 44
Answer: 29.3