Keystones — Cornerstone
Five GCSE retrieval questions · 14 June 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 55 + 91
Answer: 55 + 91 = 146 -
2. Algebra
Expand: 3(3x + 9)
Answer: 9x + 27 -
3. Geometry
Opposite = 5cm, hypotenuse = 5.8cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 18:12:18
Answer: 3:2:3 -
5. Statistics
Find the mean of: 6, 9, 5
Answer: 6.6666666666667