Keystones — Cornerstone
Five GCSE retrieval questions · 9 December 2023 · mathsvault.uk/keystones
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1. Number
What is 3² × 7²?
Answer: 441 -
2. Algebra
Solve: x + 7 = 25
Answer: x = 18 -
3. Geometry
Opposite = 11cm, hypotenuse = 15.6cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Find 37% of 188
Answer: 69.56 -
5. Statistics
Find the mean of: 2, 5, 10, 17, 6
Answer: 8