Answer:
-6 < -1 or -1 > -6
How do you know?
Well since the starting point of it is:
-6
And it goes to -1.
Which is also 5 digits away.
-1 is the closest to 0, How?
-1 is one digit away from 0.
-6 is six digits away form 0.
Therefore -6 being further.
Hope this helps and have a lovely day!