Keystones — Capstone
Five GCSE retrieval questions · 1 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄3 + 3⁄5 + 4⁄5
Answer: 31⁄15 -
2. Algebra
Complete the square: x² + 5.8x
Answer: (x + 2.9)² - 8.41 -
3. Geometry
Adjacent = 20cm, hypotenuse = 35cm. Find the angle
Answer: 55.2° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 6 blue and 6 green sections. Probability of landing on red?
Answer: 1⁄7