Keystones — Capstone
Five GCSE retrieval questions · 6 August 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Expand: 5(7x - 7)
Answer: 35x - 35 -
3. Geometry
Adjacent = 20cm, hypotenuse = 38cm. Find the angle
Answer: 58.2° -
4. Ratio
Calculate 12.7% of 831
Answer: 105.54 -
5. Statistics
A spinner has 5 red, 5 blue and 2 green sections. Probability of landing on red?
Answer: 5⁄12