Keystones — Bedrock
Five GCSE retrieval questions · 21 September 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 49 + 23
Answer: 49 + 23 = 72 -
2. Algebra Substitution
If x = 3, find the value of 3x + 9
Answer: 18 -
3. Geometry Converting lengths
Convert 33cm to mm
Answer: 330mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:20
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 14, 3, 20
Answer: 12.333333333333