Keystones — Bedrock
Five GCSE retrieval questions · 15 February 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 25
Answer: 47 + 25 = 72 -
2. Algebra Substitution
If x = 2, find the value of 7x + 7
Answer: 21 -
3. Geometry Converting lengths
Convert 38cm to mm
Answer: 380mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:18
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 20, 19, 9, 11, 14
Answer: 14.6