Keystones — Cornerstone
Five GCSE retrieval questions · 10 October 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 48 + 95
Answer: 48 + 95 = 143 -
2. Algebra
Solve: 2x = 22
Answer: x = 11 -
3. Geometry
Opposite = 15cm, hypotenuse = 30cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 20:16:20
Answer: 5:4:5 -
5. Statistics
Find the mean of: 15, 11, 11, 18
Answer: 13.75