Keystones — Bedrock
Five GCSE retrieval questions · 15 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 69 + 73
Answer: 69 + 73 = 142 -
2. Algebra Substitution
If x = 9, find the value of 7x + 3
Answer: 66 -
3. Geometry Converting lengths
Convert 17cm to mm
Answer: 170mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:10
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 19, 9, 2
Answer: 10