###### Asked in Math and ArithmeticAlgebraNumbers

Math and Arithmetic

Algebra

Numbers

# How do you use negative numbers in real life?

## Answer

###### Wiki User

###### September 25, 2011 11:36PM

I've never had to use (-3x/-4y)+(-5n X -3p) on a daily basis. In real life, if you think about it, tax is a negative number.

Every debit entry in your checkbook is a negative number. It must be subtracted from a higher (hopefully) number. If you write checks for more than what is in the bank, your account will have a negative number balance, meaning that you owe the bank money.

Also, anyone working with digital electronics will always be working with negative numbers (voltages, etc.)

- taxes
- physics and measuring how objects move
- calculus, which explains how piece-wise functions (even ones that use negative numbers) makes many of the computerized designs and cartoons

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