Keystones — Bedrock
Five GCSE retrieval questions · 19 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 28
Answer: 30 + 28 = 58 -
2. Algebra Substitution
If x = 4, find the value of 4x + 6
Answer: 22 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 16, 17, 4, 15
Answer: 13