Homework Help: math - 8th grade

Posted by taylor2008 on Wednesday, January 9, 2008 at 11:10pm.

use the numbers one to nine, each one only once. now multiply a two digit number by a three digit number and get a four digit answer using each of the digits, 1-9 each only once.

12 x 345 = 6789 of course that isn't a true statement though.

math - 8th grade - bobpursley, Thursday, January 10, 2008 at 8:28am
What is 28x157?

http://www.worldofnumbers.com/ninedig1.htm
- math - 8th grade - taylor2008, Thursday, January 10, 2008 at 9:32am
  thanks mr pursley!
math - 8th grade - jen, Thursday, January 10, 2008 at 1:58pm
I am curious to know how does one figure this out?
Is there any formula? or just by trial-error method?
math - 8th grade - Anonymous, Thursday, March 3, 2011 at 8:16pm
G

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