Keystones — Bedrock
Five GCSE retrieval questions · 11 September 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 61 + 92
Answer: 61 + 92 = 153 -
2. Algebra Substitution
If x = 7, find the value of 2x + 9
Answer: 23 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:24
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 3, 10, 6, 8, 15
Answer: 8.4