Keystones — Bedrock
Five GCSE retrieval questions · 24 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 82 + 79
Answer: 82 + 79 = 161 -
2. Algebra Substitution
If x = 8, find the value of 8x + 8
Answer: 72 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:15
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 16, 12, 12, 16
Answer: 14