The question we are tackling on this page: What is the absolute value of negative 643 or -643?
When you ask, "What is the absolute value of -643?" you are asking for the answer to the following problem:
|-643| = ?
The absolute value of -643 is the distance between -643 and 0 on a number line. See illustration below where -x is -643:

Since the distance between -643 and 0 on a number line is 643, we get the answer as follows:
|-643| = 643
Note that the absolute value of -643 can also be written as abs(-643) which may be useful to know if you have a good calculator.
Absolute Value of -642
Use the knowledge you gained on this page to figure out the absolute value of the next number on our list.
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