Keystones — Bedrock
Five GCSE retrieval questions · 26 November 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 22
Answer: 48 + 22 = 70 -
2. Algebra Substitution
If x = 3, find the value of 5x + 12
Answer: 27 -
3. Geometry Converting lengths
Convert 24cm to mm
Answer: 240mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 18, 7, 9, 18
Answer: 13