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How many 3-digit multiples of 13 are there?

 Jun 14, 2020
 #1
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988 is the last one:

 

988 - 13 =975 / 13 =75 + 1 = 76 multiples of 13, beginning with 13 and ending with 988.

 Jun 14, 2020
 #3
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You can't count 13, 26, 39, 52, 65, 78, and 91 because they don't have three digits, as the problem required. 

 

So, subtract those 7 from your 76 and get 69 which is what jimkey got.  I didn't try to figure it up myself. 

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Guest Jun 14, 2020
 #2
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so we have 13*8=104 which is the smallest 3 digit multiple of 13 and then we have 13*77 but that is more than 1000 might be what you are thinking but we have a purpose for that ecuase we are doing 77-8=69 so there are 69 multiples of 13 that are 3 digit numbers

 Jun 14, 2020

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