Keystones — Bedrock
Five GCSE retrieval questions · 23 April 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 57
Answer: 71 + 57 = 128 -
2. Algebra Substitution
If x = 10, find the value of 6x + 7
Answer: 67 -
3. Geometry Converting lengths
Convert 33cm to mm
Answer: 330mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:28
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 24, 2, 8, 10
Answer: 11