Keystones — Cornerstone
Five GCSE retrieval questions · 14 March 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 277, 258, and 115
Answer: 650 -
2. Algebra
Factorise: 4x² + 6x
Answer: 2x(2x + 3) -
3. Geometry
Opposite = 9cm, hypotenuse = 10.4cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics
Find the mean of: 14, 14, 3
Answer: 10.333333333333