Keystones — Bedrock
Five GCSE retrieval questions · 29 May 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 17
Answer: 23 + 17 = 40 -
2. Algebra Substitution
If x = 7, find the value of 4x + 3
Answer: 31 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:20
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 20, 6, 14, 18
Answer: 14.5