Question

The sum of 
−1.9
and z is 0.
Drag and drop
−1.9
and z to their correct positions on the number line.

Answer 1

like this

Answer 2

?

Answer 3

I think you have -1.9 in the wrong place. What you point to is -1.8 so you should move it one unit to the left.

Answer 4

this

Answer 5

No, you had it in the right area previously. It's just a matter of moving only one space to the left.

Answer 6

ok

Answer 7

Exactly