Keystones — Bedrock
Five GCSE retrieval questions · 4 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 37 + 61
Answer: 37 + 61 = 98 -
2. Algebra Substitution
If x = 5, find the value of 7x + 12
Answer: 47 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:24
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 21, 17, 5, 5, 7
Answer: 11