Keystones — Cornerstone
Five GCSE retrieval questions · 11 January 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 93 + 36
Answer: 93 + 36 = 129 -
2. Algebra
Collect like terms: 3x + 3y + 5x + 4y
Answer: 8x + 7y -
3. Geometry
Opposite = 13cm, hypotenuse = 18.4cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Calculate 10% of 23
Answer: 2.3 -
5. Statistics
Calculate the mean of: 41, 28, 42, 9, 38, 8
Answer: 27.7