Keystones — Bedrock
Five GCSE retrieval questions · 13 April 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 47 + 87
Answer: 47 + 87 = 134 -
2. Algebra
Factorise: 20x + 25
Answer: 5(4x + 5) -
3. Geometry
Opposite = 8cm, hypotenuse = 9.2cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 14:4
Answer: 7:2 -
5. Statistics
Find the range of: 20, 16, 33, 28, 15
Answer: 18