Keystones — Bedrock
Five GCSE retrieval questions · 20 May 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 12 × 12
Answer: 12 × 12 = 144 -
2. Algebra
Simplify: 9x + 4x
Answer: 13x -
3. Geometry
Find the area of a right triangle with base 12cm and height 6cm
Answer: 36cm² -
4. Ratio
Simplify the ratio 6:21
Answer: 2:7 -
5. Statistics
Find the range of: 24, 18, 19, 22, 28
Answer: 10