Keystones — Bedrock
Five GCSE retrieval questions · 23 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 41
Answer: 20 + 41 = 61 -
2. Algebra Substitution
If x = 7, find the value of 5x + 12
Answer: 47 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 4:6
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 8, 11, 7, 10, 14
Answer: 10