Keystones — Bedrock
Five GCSE retrieval questions · 31 December 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 44 + 45
Answer: 44 + 45 = 89 -
2. Algebra Substitution
If x = 3, find the value of 3x + 8
Answer: 17 -
3. Geometry Converting lengths
Convert 24cm to mm
Answer: 240mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:18
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 21, 9, 9
Answer: 13