Keystones — Bedrock
Five GCSE retrieval questions · 14 March 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 18 + 21
Answer: 18 + 21 = 39 -
2. Algebra
Simplify: 8x + 2x
Answer: 10x -
3. Geometry
Opposite = 6cm, hypotenuse = 8.5cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 16:10
Answer: 8:5 -
5. Statistics
Find the mean of: 14, 13, 5, 20
Answer: 13