Keystones — Bedrock
Five GCSE retrieval questions · 25 March 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 36
Answer: 39 + 36 = 75 -
2. Algebra Substitution
If x = 3, find the value of 2x + 8
Answer: 14 -
3. Geometry Converting lengths
Convert 26cm to mm
Answer: 260mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:24
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 11, 11, 23
Answer: 15