Keystones — Bedrock
Five GCSE retrieval questions · 9 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 34
Answer: 21 + 34 = 55 -
2. Algebra Substitution
If x = 4, find the value of 6x + 5
Answer: 29 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:20
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 3, 18, 19, 16, 4
Answer: 12