Keystones — Bedrock
Five GCSE retrieval questions · 16 August 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 38
Answer: 20 + 38 = 58 -
2. Algebra Substitution
If x = 8, find the value of 8x + 12
Answer: 76 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:15
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 20, 5, 20
Answer: 15