Keystones — Cornerstone
Five GCSE retrieval questions · 13 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 10 + (4) + (-16)
Answer: -2 -
2. Algebra
Expand: 5(4x + 9)
Answer: 20x + 45 -
3. Geometry
Opposite = 11cm, adjacent = 15cm. Calculate the angle
Answer: 36.3° -
4. Ratio
Simplify: 6:12:6
Answer: 1:2:1 -
5. Statistics
Calculate the mean of: 48, 13, 44, 43, 45, 24
Answer: 36.2