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Explain Bot To determine the sum of -7 + 2 using a number line, you need to start at -7 and then move 2 units to the right.
Draw a number line with -10, -5, 0, 5, and 10 as the markers. Start by placing a circle or a dot at the -7 position on the number line.
The next step is to move 2 units to the right of -7. Each unit on the number line represents 1, so you need to move 2 units to the right.
From -7, count two units to the right until you reach the position on the number line. The position you land on after moving two units to the right is -5.
Therefore, the sum of -7 + 2 is -5.
So, the correct option is OD. -5.