Keystones — Bedrock
Five GCSE retrieval questions · 11 April 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 2 × 9
Answer: 2 × 9 = 18 -
2. Algebra
Factorise: 16x + 14
Answer: 2(8x + 7) -
3. Geometry
Find the area of a right triangle with base 12cm and height 4cm
Answer: 24cm² -
4. Ratio
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics
Find the mean of: 4, 19, 8, 5
Answer: 9