Keystones — Bedrock
Five GCSE retrieval questions · 19 March 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 73
Answer: 45 + 73 = 118 -
2. Algebra Substitution
If x = 10, find the value of 6x + 7
Answer: 67 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:9
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 10, 5, 9, 3, 3
Answer: 6