Keystones — Bedrock
Five GCSE retrieval questions · 2 January 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 47
Answer: 28 + 47 = 75 -
2. Algebra Substitution
If x = 8, find the value of 5x + 11
Answer: 51 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 11, 19, 18, 3, 19
Answer: 14