Keystones — Bedrock
Five GCSE retrieval questions · 16 November 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 5⁄7 + 1⁄7
Answer: 6⁄7 -
2. Algebra
Factorise: 12x + 42
Answer: 6(2x + 7) -
3. Geometry
Find the area of a right triangle with base 12cm and height 6cm
Answer: 36cm² -
4. Ratio
Simplify the ratio 21:18
Answer: 7:6 -
5. Statistics
What is the probability of rolling a 2 on a fair die?
Answer: 1⁄6