Keystones — Bedrock
Five GCSE retrieval questions · 14 October 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 68
Answer: 81 + 68 = 149 -
2. Algebra Substitution
If x = 2, find the value of 8x + 12
Answer: 28 -
3. Geometry Converting lengths
Convert 22cm to mm
Answer: 220mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:28
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 5, 20, 17
Answer: 14