Keystones — Bedrock
Five GCSE retrieval questions · 22 September 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 29 + 61
Answer: 29 + 61 = 90 -
2. Algebra Substitution
If x = 5, find the value of 6x + 5
Answer: 35 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:20
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 20, 4, 4, 18, 24
Answer: 14