Keystones — Bedrock
Five GCSE retrieval questions · 22 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 57
Answer: 30 + 57 = 87 -
2. Algebra Substitution
If x = 8, find the value of 8x + 8
Answer: 72 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 4, 7, 25
Answer: 12