Keystones — Bedrock
Five GCSE retrieval questions · 16 May 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 77
Answer: 22 + 77 = 99 -
2. Algebra Substitution
If x = 10, find the value of 3x + 12
Answer: 42 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 9, 7, 8, 6, 10
Answer: 8