Keystones — Cornerstone
Five GCSE retrieval questions · 13 May 2025 · mathsvault.uk/keystones
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1. Number
Add: 86.99 + 49.97
Answer: 86.99 + 49.97 = 136.96 -
2. Algebra
Find the next term: 22, 25, 28, 31, ...
Answer: 34 -
3. Geometry
Calculate the hypotenuse when a = 3cm and b = 14cm
Answer: 14.32cm -
4. Ratio
Simplify: 24:16:20
Answer: 6:4:5 -
5. Statistics
Calculate the mean of: 37, 6, 7, 35, 21, 31, 11, 21
Answer: 21.1