Keystones — Bedrock
Five GCSE retrieval questions · 16 October 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 20
Answer: 22 + 20 = 42 -
2. Algebra Substitution
If x = 3, find the value of 3x + 12
Answer: 21 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:25
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 6, 19, 7
Answer: 10.666666666667