Keystones — Bedrock
Five GCSE retrieval questions · 22 July 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 23
Answer: 45 + 23 = 68 -
2. Algebra Substitution
If x = 4, find the value of 7x + 11
Answer: 39 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:6
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 18, 3, 15, 5, 15
Answer: 11.2