Keystones — Capstone
Five GCSE retrieval questions · 9 June 2022 · mathsvault.uk/keystones
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1. Number
0.00025
Answer: 2.5 × 10^-4 -
2. Algebra
Simplify: 12x - 6x + 4y - 3y
Answer: 6x + y -
3. Geometry
Adjacent = 27cm, hypotenuse = 41cm. Find the angle
Answer: 48.8° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 26. If 4 of them are 39, 26, 20, 45, what is the missing number?
Answer: 0