Keystones — Cornerstone
Five GCSE retrieval questions · 2 April 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 793 + 179
Answer: 793 + 179 = 972 -
2. Algebra
Solve: x + 10 = 22
Answer: x = 12 -
3. Geometry
Opposite = 9cm, hypotenuse = 18cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Find 30% of 448
Answer: 134.4 -
5. Statistics
Find the mean of: 10, 9, 7, 18, 19
Answer: 12.6