Keystones — Bedrock
Five GCSE retrieval questions · 13 November 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 29 + 37
Answer: 29 + 37 = 66 -
2. Algebra Substitution
If x = 10, find the value of 8x + 9
Answer: 89 -
3. Geometry Converting lengths
Convert 26cm to mm
Answer: 260mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 9, 6, 5, 20
Answer: 10