Keystones — Bedrock
Five GCSE retrieval questions · 17 June 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 42
Answer: 39 + 42 = 81 -
2. Algebra Substitution
If x = 3, find the value of 3x + 6
Answer: 15 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 3, 5, 19
Answer: 9