Keystones — Cornerstone
Five GCSE retrieval questions · 15 October 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 262, 240, and 93
Answer: 595 -
2. Algebra
Factorise: 18x + 48
Answer: 6(3x + 8) -
3. Geometry
Opposite = 13cm, adjacent = 15cm. Calculate the angle
Answer: 40.9° -
4. Ratio
Simplify: 6:8:4
Answer: 3:4:2 -
5. Statistics
Calculate the mean of: 43, 37, 24, 5, 11, 45, 47
Answer: 30.3