Keystones — Bedrock
Five GCSE retrieval questions · 7 October 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 68 + 70
Answer: 68 + 70 = 138 -
2. Algebra Substitution
If x = 3, find the value of 4x + 6
Answer: 18 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 13, 6, 6, 20, 5
Answer: 10