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Home > CCA > Chapter 1 > Lesson 1.1.3 > Problem 1-29


Mr. Guo is thinking of a number. When he takes the absolute value of his number, he gets . What could his number be? Is there more than one possible answer?  

Remember that the absolute value of a number is its distance from zero on the number line and it is always positive.
Can more than one number have the same absolute value? How is that possible?

Either or . Make sure you understand why.