Keystones — Cornerstone
Five GCSE retrieval questions · 26 March 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 58
Answer: 45 + 58 = 103 -
2. Algebra
Expand: 6(4x + 5)
Answer: 24x + 30 -
3. Geometry
Calculate the hypotenuse when a = 8cm and b = 8cm
Answer: 11.31cm -
4. Ratio
Simplify the ratio 24:15
Answer: 8:5 -
5. Statistics
Calculate the mean of: 17, 31, 29, 26, 37, 49, 26, 5
Answer: 27.5