Number One!
Curious multiplications using 1's:
1 x 1 = 1
11 x 11 = 121
111 x 111 = 12321
1111 x 1111 = 1234321
11111 x 11111 = 123454321
etc... Why ?
More Puzzles at www.TheMathWebSite.com.
posted by Alfred | 3:24 PM
High School Math
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Thursday, March 16, 2006
Curious multiplications using 1's:
1 x 1 = 1
11 x 11 = 121
111 x 111 = 12321
1111 x 1111 = 1234321
11111 x 11111 = 123454321
etc... Why ?
More Puzzles at www.TheMathWebSite.com.
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