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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

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Squaring either of these two values gives the same positive number.

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Your new ahaSquare Roots

A square root reverses squaring, and every positive number carries both a positive and negative root. Source: Square root

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More from Numbers with Stories

A few more worth knowing.

  1. 14These raised numbers indicate powers; positive integer values count repeated factors.RECALL
    Exponents

    Exponents represent repeated multiplication, growing numbers far faster than addition or plain multiplication.

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  2. 15This number is the additive identity: adding it leaves any number unchanged.RECALL
    Zero

    Zero developed independently across ancient civilizations, with its placeholder role refined in Indian mathematics.

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  3. 16This number is the multiplicative identity: multiplying by it leaves any number unchanged.RECALL
    One

    One is the multiplicative identity, leaving any number unchanged whenever it's multiplied by it.

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