Keystones — Cornerstone
Five GCSE retrieval questions · 1 November 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 4.7 + 7.9
Answer: 4.7 + 7.9 = 12.6 -
2. Algebra
Solve: x + 12 = 23
Answer: x = 11 -
3. Geometry
Opposite = 19cm, adjacent = 9cm. Calculate the angle
Answer: 64.7° -
4. Ratio
Simplify: 6:10:6
Answer: 3:5:3 -
5. Statistics
Calculate the mean of: 32, 28, 11, 16, 43, 17, 37, 43
Answer: 28.4