Keystones — Bedrock
Five GCSE retrieval questions · 15 October 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 21
Answer: 45 + 21 = 66 -
2. Algebra Substitution
If x = 3, find the value of 4x + 9
Answer: 21 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:24
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 3, 4, 14
Answer: 7