Keystones — Cornerstone
Five GCSE retrieval questions · 14 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 47 + 31
Answer: 47 + 31 = 78 -
2. Algebra
Expand: 6(3x + 9)
Answer: 18x + 54 -
3. Geometry
Opposite = 18cm, adjacent = 13cm. Calculate the angle
Answer: 54.2° -
4. Ratio
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics
Find the mean of: 5, 15, 16, 10
Answer: 11.5