Keystones — Cornerstone
Five GCSE retrieval questions · 23 February 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 626 + 134
Answer: 626 + 134 = 760 -
2. Algebra
Solve: 6x = 78
Answer: x = 13 -
3. Geometry
Opposite = 13cm, adjacent = 16cm. Calculate the angle
Answer: 39.1° -
4. Ratio
Simplify the ratio 10:15
Answer: 2:3 -
5. Statistics
Calculate the mean of: 5, 24, 41, 50, 6, 26, 11, 18
Answer: 22.6