Keystones — Bedrock
Five GCSE retrieval questions · 7 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 40
Answer: 15 + 40 = 55 -
2. Algebra Substitution
If x = 5, find the value of 5x + 8
Answer: 33 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 19, 15, 5, 9
Answer: 12