Keystones — Bedrock
Five GCSE retrieval questions · 6 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 86
Answer: 33 + 86 = 119 -
2. Algebra Substitution
If x = 7, find the value of 8x + 12
Answer: 68 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:6
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 2, 5, 17
Answer: 8