Keystones — Bedrock
Five GCSE retrieval questions · 9 September 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 28
Answer: 21 + 28 = 49 -
2. Algebra Substitution
If x = 5, find the value of 3x + 12
Answer: 27 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:28
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 2, 2, 2, 16
Answer: 5.5