Keystones — Bedrock
Five GCSE retrieval questions · 25 January 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 31
Answer: 42 + 31 = 73 -
2. Algebra Substitution
If x = 5, find the value of 7x + 3
Answer: 38 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:25
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 8, 20, 20, 12
Answer: 15