Keystones — Bedrock
Five GCSE retrieval questions · 1 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 70 + 58
Answer: 70 + 58 = 128 -
2. Algebra Substitution
If x = 4, find the value of 2x + 6
Answer: 14 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:10
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 19, 9, 9, 3
Answer: 10