Keystones — Bedrock
Five GCSE retrieval questions · 15 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 88
Answer: 45 + 88 = 133 -
2. Algebra Substitution
If x = 4, find the value of 8x + 3
Answer: 35 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 20, 13, 16, 11
Answer: 15