onay
onay onay
  • 21-05-2018
  • Mathematics
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how many four digit numbers (0 to 9,999)

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sqdancefan
sqdancefan sqdancefan
  • 21-05-2018
9000 if you don't allow numbers with leading zeros, such as 0,000.

10,000 if you do allow numbers with leading zeros.
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