Keystones — Bedrock
Five GCSE retrieval questions · 11 March 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 45
Answer: 22 + 45 = 67 -
2. Algebra Substitution
If x = 5, find the value of 2x + 9
Answer: 19 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 20, 2, 21, 13, 4
Answer: 12