Keystones — Lintel

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

1. Number

Simplify: x⁷ × x⁶

Answer: x¹³
2. Algebra

Solve: ^x⁄₆ = 6

Answer: x = 36
3. Geometry

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

Answer: 45.9°
4. Ratio

Simplify: 24:20:24

Answer: 6:5:6
5. Statistics

Calculate the mean of: 33, 10, 22, 11, 20, 48, 33

Answer: 25.3

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