Keystones — Bedrock
Five GCSE retrieval questions · 28 January 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 64 + 81
Answer: 64 + 81 = 145 -
2. Algebra Substitution
If x = 10, find the value of 5x + 3
Answer: 53 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:32
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 12, 6, 6, 16
Answer: 10