Keystones — Bedrock
Five GCSE retrieval questions · 23 May 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 49
Answer: 47 + 49 = 96 -
2. Algebra Substitution
If x = 9, find the value of 2x + 12
Answer: 30 -
3. Geometry Converting lengths
Convert 36cm to mm
Answer: 360mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:40
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 9, 5, 1
Answer: 5