how to add number "digit by digit "using if statement ?

Question

my doubt is the method of carrying number using c++

Answer 1

Sure

Answer 2

Hello FROST show us your the attempt first, later we can figure it out.

Answer 3

rkk I post my first attempt in posts,please figure out , what is wrong

Answer 4

FROST Could you please link the full code here on sololearn editor??

Answer 5

I get a answer 8.12.12
The answer that I want is 8.13.6