Keystones — Capstone
Five GCSE retrieval questions · 11 June 2022 · mathsvault.uk/keystones
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1. Number
0.0027
Answer: 2.7 × 10^-3 -
2. Algebra
Solve: x⁄7 = 3.8571428571429
Answer: x = 27 -
3. Geometry
Adjacent = 15cm, hypotenuse = 21cm. Find the angle
Answer: 44.4° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 33. If 4 of them are 24, 17, 37, 32, what is the missing number?
Answer: 55