Keystones — Bedrock
Five GCSE retrieval questions · 18 November 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 53
Answer: 39 + 53 = 92 -
2. Algebra Substitution
If x = 9, find the value of 3x + 11
Answer: 38 -
3. Geometry Converting lengths
Convert 11m to cm
Answer: 1100cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:15
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 3, 21, 18
Answer: 14