Question

Why is 3 + (−5) equal to −2?A.Because it is 5 units to the left of 0 on a horizontal number lineB. Because it is 5 units to the right of 3 on a horizontal number lineC. Because it is 5 units to the left of 3 on a horizontal number lineD. Because it is 5 units to the right of 0 on a horizontal number line

Answer 1

The given expression is 3+(-5).

3+(-5) on the number line is

Recall that

When we add a positive number, we move to the right on the number line.

When we add a negative number, we move to the left on the number line.

(-5) is a negative number.

here we add a negative 5, so we move to the left on the number line.

3+(-5) is -2 because it is 5 units left of 3 on a horizontal line.

Hence the option C is correct.