Keystones — Bedrock
Five GCSE retrieval questions · 12 August 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 27
Answer: 45 + 27 = 72 -
2. Algebra Substitution
If x = 10, find the value of 6x + 4
Answer: 64 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 18, 13, 17, 6, 20
Answer: 14.8