Integers
Negative numbers represents values below zero and positive numbers represent values above zero.
eg: above and below ground or sea level
1+(-2)=(-1) is an addition statement
3-(-1)=4 is a subtraction statement
Opposite integers have the same numeral but different sign.
eg: 3 and (-3)
(+) + (+) =
(-) - (-) =
(+) + (-) =
(-) + (+) =
(+) - (+) =
(-) - (-) =
(+) - (-) =
(-) -(+) =
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