Answer:
-1.1 and -2.9
Explanation:
We can determine which numbers are 0.9 units from -2 by both adding 0.9 to and subtract 0.9 from -2.
Adding 0.9 to -2
Adding 0.9 to -2 will show us the number that is 0.9 units more than -2:
-2 + 0.9
-1.1
Thus, -1.1 is one number that is 0.9 units away from -2.
Subtract 0.9 from -2:
Subtract 0.9 from -2 will show us the number that is 0.9 units less than -2:
-2 - 0.9
-2.9
Thus, -2.9 is the other number that is 0.9 units away from -2.