Keystones — Bedrock
Five GCSE retrieval questions · 3 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 81
Answer: 25 + 81 = 106 -
2. Algebra Substitution
If x = 6, find the value of 3x + 4
Answer: 22 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 16, 6, 7, 15
Answer: 11