Keystones — Bedrock
Five GCSE retrieval questions · 25 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 93
Answer: 21 + 93 = 114 -
2. Algebra Substitution
If x = 9, find the value of 4x + 12
Answer: 48 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:12
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 4, 14, 6
Answer: 8