Remark
The reason you have two blanks to fill in is because there are 2 answers. One goes left and the other right.
Solution
First Answer Go Right
When you go right, you are going to get a bigger answer than what you started with.
Formula
Endpoint = starting point plus amount to be moved.
Givens
Starting point = 1.3
Movement = +0.6
End point = ??
1.3 + 0.6 = endpoint
Endpoint = 1.9
Second Answer, Go left
Endpoint = beginning point - 0.6
Endpoint = 1.3 - 0.6
Endpoint = 0.7