Keystones — Bedrock
Five GCSE retrieval questions · 24 January 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 50 + 87
Answer: 50 + 87 = 137 -
2. Algebra Substitution
If x = 8, find the value of 4x + 4
Answer: 36 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 20, 12, 17
Answer: 16.333333333333