Keystones — Bedrock
Five GCSE retrieval questions · 8 September 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 36 + 41
Answer: 36 + 41 = 77 -
2. Algebra Substitution
If x = 9, find the value of 3x + 4
Answer: 31 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:6
Answer: 8:3 -
5. Statistics Mean
Find the mean of: 1, 9, 13, 5
Answer: 7