Keystones — Capstone
Five GCSE retrieval questions · 16 March 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄5 + 3⁄5 + 1⁄4
Answer: 21⁄20 -
2. Algebra
Solve: x⁄5 = 2.4
Answer: x = 12 -
3. Geometry
Adjacent = 25cm, hypotenuse = 38cm. Find the angle
Answer: 48.9° -
4. Ratio
Calculate 13% of 857
Answer: 111.41 -
5. Statistics
The mean of 4 numbers is 24. If 3 of them are 28, 45, 49, what is the missing number?
Answer: -26