Keystones Bedrock — 6 July 2021

Keystones — Bedrock

Five GCSE retrieval questions · 6 July 2021 · mathsvault.uk/keystones

1. Number

Simplify: 4⁴ × 4²

Answer: 4⁶
2. Algebra

Simplify: 5x + 7x

Answer: 12x
3. Geometry

Opposite = 15cm, hypotenuse = 30cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Calculate 50% of 74

Answer: 37
5. Statistics

Find the range of: 10, 16, 21, 26, 39

Answer: 29

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