Keystones — Bedrock
Five GCSE retrieval questions · 22 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 72 + 94
Answer: 72 + 94 = 166 -
2. Algebra Substitution
If x = 9, find the value of 5x + 6
Answer: 51 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:4
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 7, 4, 9, 14, 6
Answer: 8