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2 items are filed under this topic.
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Four-digit numbers |
2009-04-11 |
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From jp:
How many four-digit numbers are there?
Answered by Penny Nom. |
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4-digit numbers using 7, 8, 9 and 0 |
2000-09-13 |
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From Ryan:
Could you please help me with the following problem, How many different 4-digit numbers are there that use each of the digits 7,8,9,and 0? Please list them.
Answered by Penny Nom. |
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