Keystones — Cornerstone
Five GCSE retrieval questions · 28 March 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 71 + 99
Answer: 71 + 99 = 170 -
2. Algebra
Find the next term: 9, 17, 25, 33, ...
Answer: 41 -
3. Geometry
Opposite = 13cm, adjacent = 14cm. Calculate the angle
Answer: 42.9° -
4. Ratio
Simplify: 8:8:16
Answer: 1:1:2 -
5. Statistics
Calculate the mean of: 10, 44, 25, 7, 33, 39, 38, 25
Answer: 27.6