The math word "sign" is referenced in the pages listed below.
Numbers can be positive, negative or zero. Negative numbers are less than zero and usually mean a value that is a deficit ot shortage. Also can mean a number below some arbitrary reference point. When shown on a number line, they are the ones usually drawn on the left of zero.
Numbers can be positive, negative or zero. Positive numbers are the ones you most encounter in everyday life, such as 34, 9.22, etc. When shown on a number line, they are the ones usually drawn on the right of zero, getting larger as you move to the right.
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