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The sum of all the digits used to write the whole numbers 10 through 13 is 1+0+1+1+1+2+1+3 = 10. What is the sum of all the digits used to write the whole numbers 1 through 170, inclusive?

 Feb 2, 2022
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Total Num = 402
Total Sum =1503

 Feb 2, 2022

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