Keystones — Bedrock
Five GCSE retrieval questions · 29 March 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 90
Answer: 33 + 90 = 123 -
2. Algebra Substitution
If x = 7, find the value of 3x + 10
Answer: 31 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:40
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 15, 13, 10
Answer: 12.666666666667