Keystones — Bedrock
Five GCSE retrieval questions · 6 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 85 + 76
Answer: 85 + 76 = 161 -
2. Algebra Substitution
If x = 7, find the value of 7x + 8
Answer: 57 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 8, 19, 13, 10, 15
Answer: 13