Keystones — Bedrock
Five GCSE retrieval questions · 20 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 69 + 74
Answer: 69 + 74 = 143 -
2. Algebra Substitution
If x = 2, find the value of 3x + 12
Answer: 18 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 13, 23, 5, 15
Answer: 14