Keystones — Bedrock
Five GCSE retrieval questions · 25 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 38
Answer: 33 + 38 = 71 -
2. Algebra Substitution
If x = 7, find the value of 7x + 9
Answer: 58 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:20
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 3, 11, 10, 8
Answer: 8