Keystones — Bedrock
Five GCSE retrieval questions · 9 March 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 48
Answer: 25 + 48 = 73 -
2. Algebra Substitution
If x = 9, find the value of 5x + 7
Answer: 52 -
3. Geometry Converting lengths
Convert 47cm to mm
Answer: 470mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:35
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 12, 14, 3, 24, 12
Answer: 13