Keystones — Bedrock
Five GCSE retrieval questions · 27 September 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 35 + 81
Answer: 35 + 81 = 116 -
2. Algebra Substitution
If x = 6, find the value of 3x + 11
Answer: 29 -
3. Geometry Converting lengths
Convert 7cm to mm
Answer: 70mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:9
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 20, 19, 6, 15, 20
Answer: 16