Keystones — Bedrock
Five GCSE retrieval questions · 15 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 40
Answer: 25 + 40 = 65 -
2. Algebra Substitution
If x = 3, find the value of 8x + 10
Answer: 34 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 14, 13, 17, 12
Answer: 14