Keystones — Bedrock
Five GCSE retrieval questions · 25 December 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 34
Answer: 39 + 34 = 73 -
2. Algebra Substitution
If x = 7, find the value of 5x + 3
Answer: 38 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 11, 11, 5, 19, 2
Answer: 9.6