Keystones — Cornerstone
Five GCSE retrieval questions · 11 February 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 67 + ? = 172
Answer: 105 -
2. Algebra
For y = x³, find y when x = 5
Answer: y = 125 -
3. Geometry
Calculate the hypotenuse when a = 7cm and b = 6cm
Answer: 9.22cm -
4. Ratio
Find 81% of 267
Answer: 216.27 -
5. Statistics
Calculate the mean of: 30, 17, 8, 20, 5, 40, 10, 18
Answer: 18.5