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Add Do Not Use a Number Line Except as a Check

Question 316

Multiple Choice

Add. Do not use a number line except as a check.
- −89+(−79) -\frac{8}{9}+\left(-\frac{7}{9}\right)


A) −19-\frac{1}{9}
B) 53\frac{5}{3}
C) 19\frac{1}{9}
D) −53-\frac{5}{3}

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