Keystones — Bedrock
Five GCSE retrieval questions · 16 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 14
Answer: 18 + 14 = 32 -
2. Algebra Substitution
If x = 10, find the value of 7x + 3
Answer: 73 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:24
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 20, 18, 5, 18, 14
Answer: 15