Next we add 769 to 896 by first adding 7 to 8 on the 3rd rod using a 10 pair addition by adding 1 to the 4th rod and subtracting 3, the 10 pair of 7, from 8 on the 3rd rod. Then we add the 6 from 769 to the 9 on the 2nd rod using another 10 pair addition by adding 1 to 5 on the 3rd rod and subtracting 4, the 10 pair of 6, from 9 on the second rod. Finally we add the 9 of 769 to the 6 on the unit rod using a 10 pair addition by adding 1 to 5 on the 2nd rod and subtracting 1, the 10 pair of 9, from 6 on the unit rod for an interim sum of 1665.