Keystones — Bedrock
Five GCSE retrieval questions · 8 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 13
Answer: 33 + 13 = 46 -
2. Algebra Substitution
If x = 10, find the value of 3x + 7
Answer: 37 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 16, 18, 9, 17
Answer: 15