Keystones — Cornerstone

Five GCSE retrieval questions · 8 March 2024 · mathsvault.uk/keystones

1. Number

63000000

Answer: 6.3 × 10⁷
2. Algebra

Collect like terms: 8x + 4y + 4x + 5y

Answer: 12x + 9y
3. Geometry

Opposite = 8cm, hypotenuse = 11.3cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Calculate 50% of 183

Answer: 91.5
5. Statistics

Calculate the mean of: 7, 34, 50, 48, 48, 44, 32, 33

Answer: 37

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