SOLUTION: How many 3 digit numbers can be formed using the digits 0 and 1?

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Question 812171: How many 3 digit numbers can be formed using the digits 0 and 1?
Found 2 solutions by faiz19, Alan3354:
Answer by faiz19(4) About Me  (Show Source):
You can put this solution on YOUR website!
1*2*2=4(respective choices for each place)

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How many 3 digit numbers can be formed using the digits 0 and 1?
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If leading zeroes are allowed, it's 2^3 = 8
000
001
010
011
100
101
110
111
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If not, it's the last 4.