Keystones — Cornerstone
Five GCSE retrieval questions · 9 September 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 88 + 54
Answer: 88 + 54 = 142 -
2. Algebra
Solve: 5x = 50
Answer: x = 10 -
3. Geometry
Opposite = 15cm, adjacent = 19cm. Calculate the angle
Answer: 38.3° -
4. Ratio
Simplify: 12:12:6
Answer: 2:2:1 -
5. Statistics
Find the mean of: 17, 16, 17, 16, 10
Answer: 15.2