Keystones — Bedrock
Five GCSE retrieval questions · 19 February 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 90 + 80
Answer: 90 + 80 = 170 -
2. Algebra Substitution
If x = 10, find the value of 2x + 6
Answer: 26 -
3. Geometry Converting lengths
Convert 17cm to mm
Answer: 170mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:20
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 9, 6, 9, 12
Answer: 9