Keystones — Cornerstone
Five GCSE retrieval questions · 21 April 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 88 + 29
Answer: 88 + 29 = 117 -
2. Algebra
For y = x³, find y when x = 3
Answer: y = 27 -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 6:15
Answer: 2:5 -
5. Statistics
Find the mean of: 16, 5, 9, 20
Answer: 12.5