Keystones — Bedrock
Five GCSE retrieval questions · 15 October 2024 · mathsvault.uk/keystones
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1. Number
Calculate: -8 + (-2)
Answer: -10 -
2. Algebra
Factorise: 10x + 12
Answer: 2(5x + 6) -
3. Geometry
Opposite = 9cm, hypotenuse = 12.7cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 16:4
Answer: 4:1 -
5. Statistics
Find the mean of: 19, 12, 19, 17, 5
Answer: 14.4