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Law of addition, subtraction, multiplication and division of positive and negative numbers
Positive number+positive number = positive number

Negative number+negative number = negative number

Positive number (small)-positive number (large) = negative number

Positive number (large)-positive number (small) = positive number

Negative (small)-negative (large) = positive.

Negative number (large)-negative number (small) = negative number

Positive number x positive number = positive number/positive number = positive number

Negative x negative = positive and negative/negative = positive.

Positive-negative = positive-positive = negative.

Positive number+negative number (large) = negative number

Positive number+negative number (small) = positive number

Positive number x negative number = negative number Positive number/negative number = negative number

Negative/positive = negative.

Note: A negative number (large) or (small) refers to the size of a single exponential value without a negative sign, such as -3 and -5, and a negative number (large) refers to -5.