Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
1. Rational Numbers
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Exercise 30 Page 7

The absolute value of a number is its distance from 0 on the number line. Since distance is always greater than or equal to 0, the absolute value of any number is greater than or equal to 0.

|5| = |- 5|

Practice makes perfect

We want to complete the given statement. To do so, we will evaluate the absolute values on both sides.

|5| |- 5|

The absolute value of a number is the distance between this number and 0 on the number line. Since distance is always greater than or equal to 0, the absolute value of any number is greater than or equal to 0. The absolute value of a non-negative number is equal to the number, while the absolute value of a negative number is equal to its opposite.
absolute value
With this in mind, let's simplify both sides! ccc |5|= 5 |- 5|= 5 We found that both absolute values simplify to 5! This means that they are actually equal!

|5| = |- 5|

This is beacuse the distance from 5 to 0 is the same as the distance from - 5 to 0.