Keystones — Bedrock
Five GCSE retrieval questions · 13 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 48
Answer: 71 + 48 = 119 -
2. Algebra Substitution
If x = 7, find the value of 8x + 5
Answer: 61 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:12
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 10, 13, 18, 12, 12
Answer: 13