Keystones — Bedrock
Five GCSE retrieval questions · 20 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 13 + 13
Answer: 13 + 13 = 26 -
2. Algebra
Factorise: 20x + 25
Answer: 5(4x + 5) -
3. Geometry
Opposite = 10cm, hypotenuse = 14.cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Calculate 50% of 154
Answer: 77 -
5. Statistics
Find the range of: 27, 23, 16, 14, 17
Answer: 13