Keystones — Cornerstone
Five GCSE retrieval questions · 30 June 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 69 + 57
Answer: 69 + 57 = 126 -
2. Algebra
What is the next term? 2, 4, 8, 16, ...
Answer: 32 -
3. Geometry
Calculate perimeter: two sides are 15cm and 15cm at right angles
Answer: 51.2cm -
4. Ratio
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics
Find the mean of: 13, 18, 18
Answer: 16.333333333333