AB
+BA
___
141
In the addition problem above, A and B represent digits in two different two-digit numbers. What is the sum of A and B?  Choose the correct choice from the following answers.
A) 6
B) 8
C) 9
D) 11
E) 12
two ways to do it..   1) straight logic..   we can see that ones digit is 1 when units digit B and A are added..   only 12 fits in..   12
<result>E</result>
AB
+BA
___
141
In the addition problem above, A and B represent digits in two different two-digit numbers. What is the sum of A and B?