Keystones — Bedrock
Five GCSE retrieval questions · 4 May 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 98
Answer: 77 + 98 = 175 -
2. Algebra Substitution
If x = 4, find the value of 3x + 12
Answer: 24 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 16, 20, 9
Answer: 15