Keystones — Bedrock
Five GCSE retrieval questions · 8 January 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 39
Answer: 27 + 39 = 66 -
2. Algebra Substitution
If x = 5, find the value of 7x + 6
Answer: 41 -
3. Geometry Converting lengths
Convert 29cm to mm
Answer: 290mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:25
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 18, 10, 19, 5, 13
Answer: 13