Keystones — Cornerstone
Five GCSE retrieval questions · 7 July 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 615 + 435
Answer: 615 + 435 = 1050 -
2. Algebra
Solve: 4x = 48
Answer: x = 12 -
3. Geometry
Opposite = 9cm, adjacent = 15cm. Calculate the angle
Answer: 31° -
4. Ratio
Simplify: 18:6:6
Answer: 3:1:1 -
5. Statistics
Find the mean of: 17, 20, 3
Answer: 13.333333333333