#### Answer

error

#### Work Step by Step

Add the numbers to check the addition.
1 6, 7 0 9
---------------
6 7 1 5
2 8 3
9 6 1 7
1 3
+ 8 1
--------------
1 6, 7 1 9
Adding down and adding up is not giving the same the answer. There is an error.
The correct sum is 1 6, 7 0 9.