Keystones — Bedrock
Five GCSE retrieval questions · 13 June 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 64
Answer: 81 + 64 = 145 -
2. Algebra Substitution
If x = 7, find the value of 5x + 10
Answer: 45 -
3. Geometry Converting lengths
Convert 10cm to mm
Answer: 100mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 4, 18, 14, 18, 6
Answer: 12