Keystones — Cornerstone
Five GCSE retrieval questions · 21 February 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 710 + 720
Answer: 710 + 720 = 1430 -
2. Algebra
Simplify: 4x + 8x
Answer: 12x -
3. Geometry
Calculate the hypotenuse when a = 7cm and b = 12cm
Answer: 13.89cm -
4. Ratio
Calculate 10% of 42
Answer: 4.2 -
5. Statistics
Find the mean of: 17, 12, 6, 18, 10
Answer: 12.6