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Mathematics 18 Online
OpenStudy (anonymous):

How many positive, four-digit numbers have 3 as their first digit and 4 or 5 as their third digit?

OpenStudy (anonymous):

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OpenStudy (anonymous):

So, 10*2*10

OpenStudy (anonymous):

got it?

OpenStudy (anonymous):

exactly how are youu cominq upp w. thosee answers ?

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