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Mathematics 22 Online
OpenStudy (samara8954):

Sue has four $20 bills in her wallet. She needs $200 in cash to buy a new MP3 player. How many more $20 bills does Sue need to buy the MP3 player?

OpenStudy (samara8954):

Sue needs more $20 bills

OpenStudy (littlebird):

You have four $20 bills. That is 20x4 or 20+20+20+20. Subtract that from 200 to get your answer.

OpenStudy (samara8954):

OpenStudy (littlebird):

Wait...I forgot a step. After you subtract, divide it by twenty.

OpenStudy (samara8954):

so the answer is 30

OpenStudy (littlebird):

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