Keystones — Bedrock
Five GCSE retrieval questions · 11 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 40
Answer: 48 + 40 = 88 -
2. Algebra Substitution
If x = 8, find the value of 5x + 10
Answer: 50 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 15, 20, 1
Answer: 12