Keystones — Bedrock
Five GCSE retrieval questions · 9 November 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 19
Answer: 20 + 19 = 39 -
2. Algebra Substitution
If x = 8, find the value of 5x + 7
Answer: 47 -
3. Geometry Converting lengths
Convert 46cm to mm
Answer: 460mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:24
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 6, 18, 14, 17, 10
Answer: 13