Keystones — Bedrock
Five GCSE retrieval questions · 5 November 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 89
Answer: 25 + 89 = 114 -
2. Algebra Substitution
If x = 5, find the value of 5x + 4
Answer: 29 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:16
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 7, 10, 14, 19, 15
Answer: 13