Keystones — Capstone
Five GCSE retrieval questions · 18 November 2022 · mathsvault.uk/keystones
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1. Number
Simplify: y3 × y3 × y2
Answer: y8 -
2. Algebra
Solve: x⁄3 = 10.666666666667
Answer: x = 32 -
3. Geometry
Adjacent = 23cm, hypotenuse = 30cm. Find the angle
Answer: 39.9° -
4. Ratio
Calculate 31.5% of 422
Answer: 132.93 -
5. Statistics
The mean of 6 numbers is 25. If 5 of them are 17, 35, 32, 24, 27, what is the missing number?
Answer: 15