Keystones — Bedrock
Five GCSE retrieval questions · 11 October 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 52
Answer: 81 + 52 = 133 -
2. Algebra Substitution
If x = 7, find the value of 4x + 9
Answer: 37 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:20
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 2, 20, 9, 1
Answer: 8