Keystones — Bedrock
Five GCSE retrieval questions · 4 May 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 39
Answer: 38 + 39 = 77 -
2. Algebra Substitution
If x = 7, find the value of 5x + 10
Answer: 45 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:8
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 6, 9, 3, 18, 3
Answer: 7.8