Keystones — Bedrock
Five GCSE retrieval questions · 25 January 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 83
Answer: 23 + 83 = 106 -
2. Algebra Substitution
If x = 3, find the value of 7x + 6
Answer: 27 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:18
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 7, 14, 20, 11, 13
Answer: 13