Keystones — Cornerstone
Five GCSE retrieval questions · 13 April 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 99 + 68
Answer: 99 + 68 = 167 -
2. Algebra
Expand: 6(3x + 2)
Answer: 18x + 12 -
3. Geometry
Opposite = 10cm, adjacent = 13cm. Calculate the angle
Answer: 37.6° -
4. Ratio
Simplify the ratio 10:40
Answer: 1:4 -
5. Statistics
Calculate the mean of: 17, 19, 9, 29, 47, 21, 25, 30
Answer: 24.6