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Square and Cube Roots — Free KS3 Worksheet

A free, printable KS3 worksheet on square and cube roots, with a full worked answer key. 15 questions graded easy to hard for Years 7, 8 and 9, building from square roots and cube roots up to estimating a root that isn't exact, and worded garden and box problems.

The companion worksheet for the square and cube roots lesson. One idea does all the work: a root asks what number, times itself, gives you the total — twice for a square root, three times for a cube root. The questions build from square roots and cube roots of perfect squares and cubes, through mixed calculations, up to estimating a root that isn't exact (trapping it between two you know) and two worded questions about a square garden and a cube-shaped box. Every one comes with a full worked answer so you can mark it together. No calculator needed.