Keystones — Lintel

Five GCSE retrieval questions · 5 June 2022 · mathsvault.uk/keystones

1. Number

Simplify: x⁴ × x⁴

Answer: x⁸
2. Algebra

For y = x³ + 2, calculate y when x = 2

Answer: y = 10
3. Geometry

Adjacent = 21cm, hypotenuse = 31cm. Find the angle

Answer: 47.4°
4. Ratio

Simplify the ratio 4m:400cm

Answer: 1:100
5. Statistics

Find the range of: 47, -11, 37, 30, -12

Answer: 59

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