Keystones — Bedrock
Five GCSE retrieval questions · 3 October 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 21
Answer: 28 + 21 = 49 -
2. Algebra Substitution
If x = 5, find the value of 2x + 8
Answer: 18 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:15
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 9, 21, 6
Answer: 12