Keystones — Cornerstone

Five GCSE retrieval questions · 18 November 2022 · mathsvault.uk/keystones

1. Number

Simplify: 7³ × 7⁴

Answer: 7⁷
2. Algebra

Solve: x + 10 = 14

Answer: x = 4
3. Geometry

Find the area of a circle with radius 6cm

Answer: 113.cm²
4. Ratio

Find 66% of 459

Answer: 302.94
5. Statistics

Calculate the range of: 46, 50, 34, 73, 31, 48

Answer: 42

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