Keystones — Bedrock
Five GCSE retrieval questions · 16 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 56
Answer: 32 + 56 = 88 -
2. Algebra Substitution
If x = 7, find the value of 8x + 3
Answer: 59 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:24
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 18, 4, 19, 4, 15
Answer: 12