Keystones — Lintel

Five GCSE retrieval questions · 20 January 2022 · mathsvault.uk/keystones

1. Number

Calculate: 127 + 497

Answer: 127 + 497 = 624
2. Algebra

Factorise: 3x² + 7x

Answer: x(3x + 7)
3. Geometry

Adjacent = 16cm, hypotenuse = 23cm. Find the angle

Answer: 45.9°
4. Ratio

Find 66% of 342

Answer: 225.72
5. Statistics

A spinner has 6 red, 2 blue and 4 green sections. Probability of landing on red?

Answer: ¹⁄₂

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