Keystones — Bedrock
Five GCSE retrieval questions · 21 January 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 58 + 80
Answer: 58 + 80 = 138 -
2. Algebra Substitution
If x = 10, find the value of 3x + 8
Answer: 38 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:32
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 7, 21, 10, 2
Answer: 10