Keystones — Bedrock
Five GCSE retrieval questions · 16 September 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 28
Answer: 48 + 28 = 76 -
2. Algebra Substitution
If x = 7, find the value of 6x + 9
Answer: 51 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:15
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 15, 9, 18
Answer: 14