Keystones — Bedrock
Five GCSE retrieval questions · 13 May 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 59
Answer: 81 + 59 = 140 -
2. Algebra Substitution
If x = 9, find the value of 3x + 10
Answer: 37 -
3. Geometry Converting lengths
Convert 28cm to mm
Answer: 280mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:30
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 20, 9, 4
Answer: 11