Keystones — Bedrock
Five GCSE retrieval questions · 31 October 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 97 + 23
Answer: 97 + 23 = 120 -
2. Algebra Substitution
If x = 4, find the value of 8x + 10
Answer: 42 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 7, 11, 5, 17
Answer: 10