Keystones — Cornerstone
Five GCSE retrieval questions · 30 March 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 234, 219, and 85
Answer: 538 -
2. Algebra
Factorise: 6x² + 9x
Answer: 3x(2x + 3) -
3. Geometry
Opposite = 13cm, adjacent = 9cm. Calculate the angle
Answer: 55.3° -
4. Ratio
Simplify: 12:10:12
Answer: 6:5:6 -
5. Statistics
What is the probability of rolling a 4 on a fair die?
Answer: 1⁄6