Keystones — Bedrock
Five GCSE retrieval questions · 22 September 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 41
Answer: 38 + 41 = 79 -
2. Algebra Substitution
If x = 9, find the value of 4x + 4
Answer: 40 -
3. Geometry Converting lengths
Convert 28cm to mm
Answer: 280mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:28
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 10, 18, 8, 17, 17
Answer: 14