Keystones — Bedrock
Five GCSE retrieval questions · 12 March 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 18 ÷ 2
Answer: 18 ÷ 2 = 9 -
2. Algebra
Factorise: 32x + 20
Answer: 4(8x + 5) -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 32:8
Answer: 4:1 -
5. Statistics
Find the mean of: 18, 10, 15, 6, 14
Answer: 12.6