Keystones — Bedrock
Five GCSE retrieval questions · 15 July 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 11 + 25
Answer: 11 + 25 = 36 -
2. Algebra Substitution
If x = 9, find the value of 8x + 9
Answer: 81 -
3. Geometry Converting lengths
Convert 33cm to mm
Answer: 330mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:15
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 12, 2, 8, 9, 19
Answer: 10