Keystones — Bedrock
Five GCSE retrieval questions · 31 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 50 + 98
Answer: 50 + 98 = 148 -
2. Algebra Substitution
If x = 7, find the value of 7x + 4
Answer: 53 -
3. Geometry Converting lengths
Convert 41cm to mm
Answer: 410mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:24
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 8, 20, 4, 10, 18
Answer: 12