Keystones — Bedrock
Five GCSE retrieval questions · 13 January 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 84
Answer: 28 + 84 = 112 -
2. Algebra Substitution
If x = 8, find the value of 5x + 12
Answer: 52 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:18
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 4, 10, 19, 9, 18
Answer: 12