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Mathematics 15 Online
OpenStudy (anonymous):

It takes 445 seconds for two songs to be played back to back with no pause between them. If the second song is 189 seconds long, how many seconds long is the first song?

OpenStudy (anonymous):

445 - 189

OpenStudy (anonymous):

I don't have a calculator so you do the rest.

OpenStudy (anonymous):

3_6

OpenStudy (anonymous):

I'm too tired to find the middle number.

OpenStudy (anonymous):

356

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