Keystones — Bedrock
Five GCSE retrieval questions · 15 March 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 99 + 57
Answer: 99 + 57 = 156 -
2. Algebra
Factorise: 32x + 20
Answer: 4(8x + 5) -
3. Geometry
Find the area of a right triangle with base 10cm and height 6cm
Answer: 30cm² -
4. Ratio
Simplify the ratio 6:18
Answer: 1:3 -
5. Statistics
Find the range of: 24, 13, 9, 25, 13
Answer: 16