Keystones — Bedrock
Five GCSE retrieval questions · 7 November 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 29 + 13
Answer: 29 + 13 = 42 -
2. Algebra Substitution
If x = 4, find the value of 4x + 7
Answer: 23 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 2, 17, 7, 16, 10
Answer: 10.4