Keystones — Bedrock
Five GCSE retrieval questions · 22 January 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 38
Answer: 21 + 38 = 59 -
2. Algebra Substitution
If x = 7, find the value of 4x + 6
Answer: 34 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:9
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 13, 20, 7, 19, 16
Answer: 15