Keystones — Bedrock
Five GCSE retrieval questions · 13 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 48
Answer: 12 + 48 = 60 -
2. Algebra Substitution
If x = 10, find the value of 8x + 10
Answer: 90 -
3. Geometry Converting lengths
Convert 35cm to mm
Answer: 350mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:20
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 20, 21, 7, 8
Answer: 14