Keystones — Bedrock
Five GCSE retrieval questions · 13 February 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 56
Answer: 45 + 56 = 101 -
2. Algebra Substitution
If x = 10, find the value of 8x + 9
Answer: 89 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:18
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 15, 3, 10, 16
Answer: 11