Keystones — Bedrock
Five GCSE retrieval questions · 30 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 22
Answer: 48 + 22 = 70 -
2. Algebra Substitution
If x = 8, find the value of 4x + 7
Answer: 39 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:20
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 8, 19, 9, 12, 12
Answer: 12