Keystones — Bedrock
Five GCSE retrieval questions · 10 March 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 39
Answer: 42 + 39 = 81 -
2. Algebra Substitution
If x = 3, find the value of 6x + 4
Answer: 22 -
3. Geometry Converting lengths
Convert 24cm to mm
Answer: 240mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:10
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 16, 2, 10, 12
Answer: 10