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Mathematics 19 Online
OpenStudy (anonymous):

For how many three-digit natural numbers is the sum of the digits equal to 5?

OpenStudy (rsadhvika):

8 permute : 1,2,2

OpenStudy (foolaroundmath):

a sum of 5 can be obtained by (1,1,3) (1,2,2) Can you find how many 3 digit numbers are there with these digits?

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