Keystones — Bedrock
Five GCSE retrieval questions · 21 January 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 92
Answer: 45 + 92 = 137 -
2. Algebra Substitution
If x = 7, find the value of 6x + 5
Answer: 47 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:21
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 9, 6, 25, 20
Answer: 15