Sixth Grade Challenging Math

--------------------------------------------------------------------------

6-25)   Answer

There are more answers.  Here is one example:

Start with the ones place. The sum is 0. Therefore the the sum of the 4 digits at the one's place needs to be 10 or 20.
1 + 2 + 3 + 4 = 10, or 1 + 3 + 7 + 9 = 20. The sum of the 3 digits on the tens place plus the carry over needs to be 10 or 11. Try them out and you will get the answers.