Keystones — Bedrock
Five GCSE retrieval questions · 17 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 15
Answer: 31 + 15 = 46 -
2. Algebra Substitution
If x = 10, find the value of 7x + 5
Answer: 75 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 4:16
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 20, 20, 5, 11
Answer: 14