Keystones — Cornerstone
Five GCSE retrieval questions · 9 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 66 + 88
Answer: 66 + 88 = 154 -
2. Algebra
Factorise: 8x² + 5x
Answer: x(8x + 5) -
3. Geometry
Opposite = 20cm, adjacent = 15cm. Calculate the angle
Answer: 53.1° -
4. Ratio
Find 15% of 130
Answer: 19.5 -
5. Statistics
Calculate the mean of: 20, 22, 23, 26, 48, 44
Answer: 30.5