Keystones — Bedrock
Five GCSE retrieval questions · 17 August 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 70
Answer: 42 + 70 = 112 -
2. Algebra Substitution
If x = 6, find the value of 6x + 3
Answer: 39 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:8
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 10, 6, 9, 11, 19
Answer: 11