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How many four-digit numbers are there?

Anonymous

∙ 15y ago

Updated: 11/4/2022

9000.

The first digit can be any one of 1-9 (9 choices).

The second digit can be any one of 0-9 (10 choices).

The third digit can be any one of 0-9 (10 choices).

The fourth digit can be any one of 0-9 (10 choices).

So, in all, 9*10*10*10 = 9000

Wiki User

∙ 15y ago

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