Keystones — Capstone
Five GCSE retrieval questions · 17 December 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 990 + 636
Answer: 1626 -
2. Algebra
Solve: x⁄5 = 5.8
Answer: x = 29 -
3. Geometry
Adjacent = 16cm, hypotenuse = 35cm. Find the angle
Answer: 62.8° -
4. Ratio
Calculate 23.1% of 488
Answer: 112.73 -
5. Statistics
The mean of 4 numbers is 22. If 3 of them are 42, 28, 24, what is the missing number?
Answer: -6