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how do I know when a number is positive or negative

Guest Mar 4, 2017
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When the number is just a number, i.e. no signs, e.g.: 5, 7, 0.5, they are positive

When the number contains negative sign, e.g.: -1, -2/3, -\(\pi\), they are negative

MaxWong  Mar 5, 2017

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