Keystones — Bedrock
Five GCSE retrieval questions · 23 September 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 57
Answer: 31 + 57 = 88 -
2. Algebra Substitution
If x = 3, find the value of 6x + 4
Answer: 22 -
3. Geometry Converting lengths
Convert 33cm to mm
Answer: 330mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 19, 16, 4, 9
Answer: 12