Keystones — Bedrock
Five GCSE retrieval questions · 3 February 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 91
Answer: 38 + 91 = 129 -
2. Algebra Substitution
If x = 9, find the value of 7x + 12
Answer: 75 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:12
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 16, 11, 6
Answer: 11