Keystones — Bedrock
Five GCSE retrieval questions · 19 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 56 + 66
Answer: 56 + 66 = 122 -
2. Algebra Substitution
If x = 4, find the value of 5x + 11
Answer: 31 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:21
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 2, 8, 18, 20, 12
Answer: 12