Keystones — Bedrock
Five GCSE retrieval questions · 8 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 87 + 54
Answer: 87 + 54 = 141 -
2. Algebra Substitution
If x = 5, find the value of 7x + 3
Answer: 38 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:16
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 15, 14, 10
Answer: 13