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Find the sum. You may find using a number line to be helpful. Victor borrowed $20.50 from his mother to go to the theater. A week later, he paid her $20.50 back. How much does he still owe her?

Sagot :

Subtract the amount he paid his mother back from the amount he borrowed from her:

20.50 - 20.50 = 0

He does not owe his mother any more.