Keystones — Bedrock
Five GCSE retrieval questions · 9 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 31
Answer: 20 + 31 = 51 -
2. Algebra Substitution
If x = 2, find the value of 7x + 7
Answer: 21 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:32
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 21, 3, 2, 14
Answer: 10