Keystones — Bedrock
Five GCSE retrieval questions · 17 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 79 + 50
Answer: 79 + 50 = 129 -
2. Algebra Substitution
If x = 8, find the value of 3x + 10
Answer: 34 -
3. Geometry Converting lengths
Convert 35cm to mm
Answer: 350mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:30
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 17, 8, 17, 16, 2
Answer: 12