Keystones — Cornerstone
Five GCSE retrieval questions · 23 June 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 55 + 22
Answer: 55 + 22 = 77 -
2. Algebra
Simplify: 8x + 3x
Answer: 11x -
3. Geometry
Opposite = 10cm, hypotenuse = 11.5cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 12:8:4
Answer: 3:2:1 -
5. Statistics
Find the mean of: 14, 14, 15, 8, 15
Answer: 13.2