Keystones — Bedrock
Five GCSE retrieval questions · 13 July 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 61 + 22
Answer: 61 + 22 = 83 -
2. Algebra Substitution
If x = 6, find the value of 2x + 5
Answer: 17 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:14
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 23, 15, 7
Answer: 15