Keystones — Bedrock
Five GCSE retrieval questions · 14 March 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 43 + 12
Answer: 43 + 12 = 55 -
2. Algebra Substitution
If x = 5, find the value of 8x + 8
Answer: 48 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:21
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 2, 16, 3
Answer: 7