Keystones — Bedrock
Five GCSE retrieval questions · 13 April 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 11
Answer: 23 + 11 = 34 -
2. Algebra Substitution
If x = 9, find the value of 8x + 9
Answer: 81 -
3. Geometry Converting lengths
Convert 11cm to mm
Answer: 110mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:35
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 9, 15, 16, 17, 13
Answer: 14