Keystones — Cornerstone
Five GCSE retrieval questions · 27 July 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 25 + 52
Answer: 25 + 52 = 77 -
2. Algebra
Solve: 6x = 78
Answer: x = 13 -
3. Geometry
Opposite = 9cm, adjacent = 20cm. Calculate the angle
Answer: 24.2° -
4. Ratio
Simplify: 12:6:12
Answer: 2:1:2 -
5. Statistics
Calculate the mean of: 31, 50, 43, 10, 50, 41
Answer: 37.5