Keystones — Bedrock
Five GCSE retrieval questions · 7 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 28
Answer: 47 + 28 = 75 -
2. Algebra Substitution
If x = 9, find the value of 6x + 11
Answer: 65 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:30
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 8, 15, 11, 2
Answer: 9