Keystones — Bedrock
Five GCSE retrieval questions · 23 August 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 55 + 61
Answer: 55 + 61 = 116 -
2. Algebra Substitution
If x = 3, find the value of 7x + 4
Answer: 25 -
3. Geometry Converting lengths
Convert 47cm to mm
Answer: 470mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:15
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 15, 3, 21
Answer: 13