Keystones — Bedrock
Five GCSE retrieval questions · 18 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 57
Answer: 48 + 57 = 105 -
2. Algebra Substitution
If x = 10, find the value of 2x + 5
Answer: 25 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 32:20
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 6, 13, 10, 19
Answer: 12