Knaph

Square roots

The square root of a number is the number that, multiplied by itself, makes it: √49 = 7 because 7 × 7 = 49. It goes back from a square to its side. Only square numbers have whole square roots; the square root of any other number lies between two whole numbers, like √30 between 5 and 6.

Depth 1 · Foundation

You can find the square root of a square number by asking which number times itself makes it, write it with √, and say which two whole numbers the square root of any other number lies between.

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