Keystones — Bedrock
Five GCSE retrieval questions · 7 January 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 32
Answer: 25 + 32 = 57 -
2. Algebra Substitution
If x = 9, find the value of 7x + 6
Answer: 69 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:18
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 10, 7, 10, 25
Answer: 13