Keystones — Cornerstone
Five GCSE retrieval questions · 22 August 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 42 + 84
Answer: 42 + 84 = 126 -
2. Algebra
Solve: x + 6 = 18
Answer: x = 12 -
3. Geometry
Opposite = 16cm, adjacent = 9cm. Calculate the angle
Answer: 60.6° -
4. Ratio
Simplify the ratio 12:15
Answer: 4:5 -
5. Statistics
Calculate the mean of: 22, 35, 44, 33, 35, 17, 16, 7
Answer: 26.1