Keystones — Bedrock
Five GCSE retrieval questions · 31 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 52
Answer: 47 + 52 = 99 -
2. Algebra Substitution
If x = 3, find the value of 8x + 7
Answer: 31 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:4
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 8, 19, 18, 2, 18
Answer: 13