which number line correctly shows -0.8 + 0.6?

Explanation:

Step1: Calculate the sum

$-0.8 + 0.6=- 0.2$

Step2: Analyze number - line representation

We start at - 0.8 on the number - line. Since we are adding 0.6 (a positive number), we move 0.6 units to the right. Starting at - 0.8 and moving 0.6 units to the right lands us at - 0.2.

Answer:

The number - line that starts at - 0.8 and has an arrow moving 0.6 units to the right (ending at - 0.2) is the correct one. Without specific labels for each option, based on the described movement, the first option (if the first one shows starting at - 0.8 and moving 0.6 units right) is correct.