Keystones — Lintel

Five GCSE retrieval questions · 20 January 2024 · mathsvault.uk/keystones

1. Number

Simplify: y³ × y³ × y⁵

Answer: y¹¹
2. Algebra

Solve: ^x⁄₄ = 8.5

Answer: x = 34
3. Geometry

Adjacent = 25cm, hypotenuse = 33cm. Find the angle

Answer: 40.7°
4. Ratio

Find 16% of 479

Answer: 76.64
5. Statistics

Find the range of: 16, 28, 42, -15, -25

Answer: 67

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