Keystones — Bedrock
Five GCSE retrieval questions · 18 November 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 87 + 51
Answer: 87 + 51 = 138 -
2. Algebra Substitution
If x = 9, find the value of 7x + 4
Answer: 67 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:8
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 3, 14, 12, 23, 18
Answer: 14