Keystones — Cornerstone
Five GCSE retrieval questions · 12 October 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 7 + (7) + (7)
Answer: 21 -
2. Algebra
Find the next term: 22, 27, 32, 37, ...
Answer: 42 -
3. Geometry
Opposite = 12cm, hypotenuse = 13.9cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 6:9:15
Answer: 2:3:5 -
5. Statistics
Calculate the range of: 27, 94, 27, 103, 23, 47
Answer: 80