Keystones — Bedrock
Five GCSE retrieval questions · 23 June 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 76 + 78
Answer: 76 + 78 = 154 -
2. Algebra Substitution
If x = 3, find the value of 7x + 9
Answer: 30 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:25
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 1, 2, 15
Answer: 6