Keystones — Bedrock
Five GCSE retrieval questions · 14 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 26
Answer: 27 + 26 = 53 -
2. Algebra Substitution
If x = 10, find the value of 8x + 8
Answer: 88 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 18, 19, 7, 2, 14
Answer: 12