Keystones — Bedrock
Five GCSE retrieval questions · 19 May 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 22
Answer: 39 + 22 = 61 -
2. Algebra Substitution
If x = 10, find the value of 3x + 10
Answer: 40 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 17, 16, 12, 9, 6
Answer: 12