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OpenStudy (anonymous):
how many whole numbers between 1-1000 do not contain the digit 1?
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OpenStudy (anonymous):
728
OpenStudy (anonymous):
total combinations of 3 digits with the elements of {0,2,3,4,5,6,7,8,9} = 9^3 = 729 now minus 1 (otherwise 000 is counted) so 729-1=728
OpenStudy (anonymous):
8 single digit, 8*9 double digit, 8*9*9 triple digit numbers
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