Keystones — Bedrock
Five GCSE retrieval questions · 4 January 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 29
Answer: 38 + 29 = 67 -
2. Algebra Substitution
If x = 4, find the value of 7x + 9
Answer: 37 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 24, 13, 3, 7, 18
Answer: 13