Keystones — Bedrock
Five GCSE retrieval questions · 19 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 39
Answer: 15 + 39 = 54 -
2. Algebra Substitution
If x = 10, find the value of 2x + 11
Answer: 31 -
3. Geometry Converting lengths
Convert 44cm to mm
Answer: 440mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:10
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 4, 19, 4, 20, 23
Answer: 14