Keystones — Bedrock
Five GCSE retrieval questions · 17 October 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 77
Answer: 30 + 77 = 107 -
2. Algebra Substitution
If x = 5, find the value of 2x + 10
Answer: 20 -
3. Geometry Converting lengths
Convert 38cm to mm
Answer: 380mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:25
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 12, 12, 5
Answer: 9.6666666666667