Keystones — Cornerstone
Five GCSE retrieval questions · 2 March 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 8.7 + 4.6
Answer: 8.7 + 4.6 = 13.3 -
2. Algebra
Solve: 9x = 54
Answer: x = 6 -
3. Geometry
Opposite = 14cm, hypotenuse = 28cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Find 28% of 229
Answer: 64.12 -
5. Statistics
Calculate the mean of: 18, 38, 31, 33, 45, 8, 34
Answer: 29.6