Keystones — Bedrock
Five GCSE retrieval questions · 11 January 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 29 + 13
Answer: 29 + 13 = 42 -
2. Algebra Substitution
If x = 7, find the value of 2x + 8
Answer: 22 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:40
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 3, 9, 11, 2, 20
Answer: 9