Keystones — Cornerstone
Five GCSE retrieval questions · 26 December 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 66 + 72
Answer: 66 + 72 = 138 -
2. Algebra
Solve: 4x = 60
Answer: x = 15 -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Simplify: 12:6:12
Answer: 2:1:2 -
5. Statistics
Calculate the mean of: 28, 18, 25, 23, 50, 5, 48, 48
Answer: 30.6