Keystones — Cornerstone
Five GCSE retrieval questions · 4 July 2023 · mathsvault.uk/keystones
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1. Number
Find the total of 252, 175, and 88
Answer: 515 -
2. Algebra
Expand: 3(4x + 9)
Answer: 12x + 27 -
3. Geometry
Opposite = 8cm, hypotenuse = 9.2cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 8:6:4
Answer: 4:3:2 -
5. Statistics
What is the probability of rolling a 1 on a fair die?
Answer: 1⁄6