Keystones — Bedrock
Five GCSE retrieval questions · 26 October 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 96 + 90
Answer: 96 + 90 = 186 -
2. Algebra Substitution
If x = 7, find the value of 3x + 9
Answer: 30 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:28
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 20, 11, 6, 15
Answer: 13