Keystones — Cornerstone
Five GCSE retrieval questions · 16 October 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 23 + 42
Answer: 23 + 42 = 65 -
2. Algebra
Solve: x + 5 = 13
Answer: x = 8 -
3. Geometry
Opposite = 19cm, adjacent = 20cm. Calculate the angle
Answer: 43.5° -
4. Ratio
Calculate 25% of 121
Answer: 30.25 -
5. Statistics
Find the mean of: 2, 7, 11, 18, 12
Answer: 10