Keystones — Bedrock
Five GCSE retrieval questions · 31 May 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 90 + 95
Answer: 90 + 95 = 185 -
2. Algebra Substitution
If x = 8, find the value of 5x + 4
Answer: 44 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:18
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 20, 13, 18, 5
Answer: 14