Keystones — Cornerstone
Five GCSE retrieval questions · 24 August 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 40 + 82
Answer: 40 + 82 = 122 -
2. Algebra
Solve: 3x = 39
Answer: x = 13 -
3. Geometry
Opposite = 15cm, hypotenuse = 30cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Find 54% of 326
Answer: 176.04 -
5. Statistics
Calculate the mean of: 36, 24, 7, 7, 42, 21, 43, 14
Answer: 24.3