Keystones — Bedrock
Five GCSE retrieval questions · 26 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 13 + 45
Answer: 13 + 45 = 58 -
2. Algebra
Factorise: 21x + 24
Answer: 3(7x + 8) -
3. Geometry
Opposite = 10cm, hypotenuse = 14.cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 24:9
Answer: 8:3 -
5. Statistics
Find the range of: 40, 21, 16, 15, 25
Answer: 25