1998 CEMC Gauss (Grade 7) Problems/Problem 6
In the multiplication question, the sum of the digits in the four boxes is:
[Multiply using long multiplication. Find the sum of the four numbers in the thousands place column.]
Multiplying, we find that the numbers in the thousands place column are 1, 9, 1, and 2 respectively. Adding yields a sum of 12, so the answer is
-edited by coolmath34
If anyone knows the LaTeX to show long multiplication, any help would be appreciated.