Keystones — Bedrock
Five GCSE retrieval questions · 30 April 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 39
Answer: 23 + 39 = 62 -
2. Algebra Substitution
If x = 9, find the value of 5x + 7
Answer: 52 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 9, 11, 19, 19
Answer: 14.5