Keystones — Bedrock
Five GCSE retrieval questions · 10 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 49 + 31
Answer: 49 + 31 = 80 -
2. Algebra Substitution
If x = 2, find the value of 5x + 10
Answer: 20 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 17, 3, 19
Answer: 13