Keystones — Bedrock
Five GCSE retrieval questions · 3 April 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 39
Answer: 41 + 39 = 80 -
2. Algebra Substitution
If x = 7, find the value of 6x + 10
Answer: 52 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 5, 15, 4, 4
Answer: 7