Keystones — Cornerstone
Five GCSE retrieval questions · 19 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 35 + 90
Answer: 35 + 90 = 125 -
2. Algebra
Expand: 9(x + 3)
Answer: 9x + 27 -
3. Geometry
Opposite = 19cm, adjacent = 10cm. Calculate the angle
Answer: 62.2° -
4. Ratio
Simplify the ratio 40:15
Answer: 8:3 -
5. Statistics
Calculate the mean of: 40, 14, 14, 21, 9, 26, 17, 37
Answer: 22.3