Keystones — Bedrock
Five GCSE retrieval questions · 27 August 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 13 + 38
Answer: 13 + 38 = 51 -
2. Algebra Substitution
If x = 10, find the value of 3x + 7
Answer: 37 -
3. Geometry Converting lengths
Convert 14m to cm
Answer: 1400cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 5, 9, 19
Answer: 11