Keystones — Bedrock
Five GCSE retrieval questions · 25 August 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 99
Answer: 42 + 99 = 141 -
2. Algebra Substitution
If x = 3, find the value of 3x + 4
Answer: 13 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:32
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 20, 12, 3, 2
Answer: 9.25