Keystones — Bedrock
Five GCSE retrieval questions · 14 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 90
Answer: 47 + 90 = 137 -
2. Algebra Substitution
If x = 7, find the value of 3x + 7
Answer: 28 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:16
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 8, 3, 10
Answer: 7