Keystones — Bedrock
Five GCSE retrieval questions · 15 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 34
Answer: 45 + 34 = 79 -
2. Algebra Substitution
If x = 10, find the value of 3x + 12
Answer: 42 -
3. Geometry Converting lengths
Convert 47cm to mm
Answer: 470mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:8
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 16, 7, 13, 8
Answer: 11