Keystones — Cornerstone
Five GCSE retrieval questions · 30 April 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 87 + 80
Answer: 87 + 80 = 167 -
2. Algebra
Simplify: 5x + 8x
Answer: 13x -
3. Geometry
Opposite = 12cm, hypotenuse = 13.9cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 15:6
Answer: 5:2 -
5. Statistics
Find the range of: 24, 19, 33, 30, 23
Answer: 14