Keystones — Bedrock
Five GCSE retrieval questions · 27 October 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 39
Answer: 20 + 39 = 59 -
2. Algebra Substitution
If x = 8, find the value of 3x + 11
Answer: 35 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:21
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 19, 4, 2, 15, 15
Answer: 11