Math - Negative Numbers

number line

Negative numbers are all numbers less than zero.

Negative Number Arithmetic Operations

Addition

addition of negative numbers

-5 + (-3) = -8

addition of negative number with positive number

-5 + 3 = -2


Subtraction

subtraction of negative numbers

-4 - 2 = -6

subtraction of numbers

4 - 2 = 2


Multiplication

−3×5=−15-3 \times 5 = -15
−3×−5=15-3 \times -5 = 15


Division

-10 / 2 = -5
-10 / -2 = 5

Law of Signs

Addition & Subtraction

(−)(−)=(−)(+)(+)=(+)(−)(+)=(−)(+)(−)=(+)(-)(-) = (-)\\ (+)(+) = (+)\\ \LARGE(-)\normalsize (+) = (-)\\ \LARGE(+)\normalsize (-) = (+)

Multiplication & Division

(−)(−)=(+)(+)(+)=(+)(−)(+)=(−)(+)(−)=(−)(-)(-) = (+)\\ (+)(+) = (+)\\ (-)(+) = (-)\\ (+)(-) = (-)