Keystones — Bedrock
Five GCSE retrieval questions · 25 August 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 73
Answer: 42 + 73 = 115 -
2. Algebra Substitution
If x = 3, find the value of 5x + 6
Answer: 21 -
3. Geometry Converting lengths
Convert 11cm to mm
Answer: 110mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:10
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 19, 10, 2, 3, 6
Answer: 8