Keystones — Bedrock
Five GCSE retrieval questions · 30 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 46
Answer: 21 + 46 = 67 -
2. Algebra Substitution
If x = 8, find the value of 8x + 4
Answer: 68 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:18
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 3, 7, 15, 15
Answer: 10