Keystones — Bedrock
Five GCSE retrieval questions · 11 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 93 + 42
Answer: 93 + 42 = 135 -
2. Algebra
Factorise: 12x + 18
Answer: 6(2x + 3) -
3. Geometry
Opposite = 14cm, hypotenuse = 19.8cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 6:16
Answer: 3:8 -
5. Statistics
Find the mean of: 19, 6, 19
Answer: 14.666666666667