Keystones — Bedrock
Five GCSE retrieval questions · 4 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 72 + 92
Answer: 72 + 92 = 164 -
2. Algebra Substitution
If x = 4, find the value of 7x + 9
Answer: 37 -
3. Geometry Converting lengths
Convert 41cm to mm
Answer: 410mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:18
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 15, 16, 8, 9, 7
Answer: 11