Keystones — Bedrock
Five GCSE retrieval questions · 29 December 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 70 + 38
Answer: 70 + 38 = 108 -
2. Algebra Substitution
If x = 10, find the value of 5x + 9
Answer: 59 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:18
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 20, 10, 17, 19, 12
Answer: 15.6