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One by two (Posted on 2014-10-22) Difficulty: 1 of 5
Express number 1 by two distinct digits in as many ways as possible, using no mathematical signs.

See The Solution Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

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Some Thoughts 19 solutions | Comment 1 of 6
The only ways I know to express a number without any mathematical signs are using concatenation, exponent as a superscript, and combination using parentheses and no fraction bar.

Concatenation: 01 = 1


10=20=30=40=50=60=70=80=90 = 1

Combination is hard to render without big parentheses:
( )  = C(1,0) = 1   etc...

Whether any of these counts is a matter of interpretation.

  Posted by Jer on 2014-10-22 10:38:08
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