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3-128.

Evaluate each absolute value expression below.

Absolute value means distance away from zero on a number line.

Consult the number line below. How far is each value from 0?

A number line from negative 3 to 5.

  1. Since and are already positive, just add.

  2. How far is from 0?

    |−3| = 3

    |5| =5

    3 + 5 = 8

  3. − 6