Keystones — Capstone
Five GCSE retrieval questions · 6 June 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 997 + 589
Answer: 1586 -
2. Algebra
Expand: 7(5x - 7)
Answer: 35x - 49 -
3. Geometry
Adjacent = 22cm, hypotenuse = 36cm. Find the angle
Answer: 52.3° -
4. Ratio
Calculate 36.3% of 249
Answer: 90.39 -
5. Statistics
The mean of 6 numbers is 26. If 5 of them are 18, 50, 23, 15, 36, what is the missing number?
Answer: 14