Keystones — Bedrock
Five GCSE retrieval questions · 18 March 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 11
Answer: 39 + 11 = 50 -
2. Algebra Substitution
If x = 7, find the value of 6x + 3
Answer: 45 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:6
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 20, 18, 17
Answer: 18.333333333333