Keystones — Bedrock
Five GCSE retrieval questions · 24 October 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 51 + 86
Answer: 51 + 86 = 137 -
2. Algebra Substitution
If x = 9, find the value of 3x + 9
Answer: 36 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 2, 5, 4, 13, 11
Answer: 7