Negative Numbers

Numbers that are less than zero are negative numbers. Usefulness suggested by Raffael Bombelli in 1572.

Addition of a negative is equivalent to subtracting a positive.
For example;

Subtraction of a negative is equivalent to adding a positive.
For example;

A positive multiplied by a negative creates a negative.
For example;
A negative multiplied by a negative creates a positive.
For example;

A positive divided by a negative (or a negative divided by a positive) creates a negative.
For example;
A negative divided by a negative creates a positive.
For example;

See also: Addition, Division, Multiplication, Negative, Positive Number.

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Subjects: Mathematics