Keystones — Bedrock
Five GCSE retrieval questions · 4 September 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 59
Answer: 45 + 59 = 104 -
2. Algebra Substitution
If x = 9, find the value of 4x + 9
Answer: 45 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 19, 16, 5, 20
Answer: 15