Keystones — Bedrock
Five GCSE retrieval questions · 31 August 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 90 + 22
Answer: 90 + 22 = 112 -
2. Algebra Substitution
If x = 2, find the value of 4x + 12
Answer: 20 -
3. Geometry Converting lengths
Convert 38cm to mm
Answer: 380mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:15
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 8, 5, 20
Answer: 11