Keystones — Bedrock
Five GCSE retrieval questions · 3 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 75
Answer: 33 + 75 = 108 -
2. Algebra Substitution
If x = 4, find the value of 7x + 9
Answer: 37 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 18, 6, 4, 12
Answer: 10