Keystones — Cornerstone
Five GCSE retrieval questions · 18 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 63 + 87
Answer: 63 + 87 = 150 -
2. Algebra
Solve: x + 2 = 18
Answer: x = 16 -
3. Geometry
Opposite = 16cm, adjacent = 13cm. Calculate the angle
Answer: 50.9° -
4. Ratio
Find 51% of 211
Answer: 107.61 -
5. Statistics
Calculate the mean of: 27, 33, 32, 45, 6, 14, 40
Answer: 28.1