Keystones — Bedrock
Five GCSE retrieval questions · 13 June 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 71 + 81
Answer: 71 + 81 = 152 -
2. Algebra
Factorise: 21x + 12
Answer: 3(7x + 4) -
3. Geometry
Opposite = 5cm, hypotenuse = 5.8cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 20:30
Answer: 2:3 -
5. Statistics
Find the range of: 12, 39, 25, 20, 11
Answer: 28