Keystones — Cornerstone
Five GCSE retrieval questions · 11 October 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 9.3 + 8
Answer: 9.3 + 8 = 17.3 -
2. Algebra
Simplify: 5x + 6x
Answer: 11x -
3. Geometry
Opposite = 11cm, hypotenuse = 12.7cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Calculate 25% of 80
Answer: 20 -
5. Statistics
Find the mean of: 13, 6, 19, 10, 17
Answer: 13