Keystones — Bedrock
Five GCSE retrieval questions · 3 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 92 + 98
Answer: 92 + 98 = 190 -
2. Algebra Substitution
If x = 9, find the value of 5x + 9
Answer: 54 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:6
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 14, 5, 2
Answer: 7