# How do you evaluate abs(-10)?

##### 3 Answers
Dec 29, 2016

$10$

#### Explanation:

The $\textcolor{b l u e}{\text{absolute value}}$ is always $\textcolor{red}{\text{positive}} .$

This is because it is a measure of how far a value is from zero.

$\text{That is } | - 4 | = | 4 | = 4$ since both - 4 and 4 are 4 units from zero.

$\Rightarrow | - 10 | = 10$

Dec 29, 2016

$10$

#### Explanation:

So absolute value means a number's distance from 0.
$- 10$ is $10$ units from $0$, so the answer is $10$.

An easier way to do this is to just get rid of the negative sign.

Here are some examples:

$| 31 | = 31$ (because 31's distance from 0 is 31)

$| - 31 | = 31$ (because -31's distance from 0 is 31)

You can do some practice by using random number generators and finding their absolute values.

Dec 30, 2016

+10

#### Explanation:

The format of $| - 10 |$ is a way of mathematically stating the 'size' of a count. It does not matter if the number inside the | | is positive or negative. The size of the count is the same.

Example $\text{ } | - 5 | = | + 5 | = 5$

A name for the 'count size' is Cardinality but at this level you will NOT be using this name.

The name for the $\textcolor{red}{| \text{ some number} |}$ is absolute value which you will be using.

color(brown)(|-10| =|+10|=10