Question

Find the sum ( -6 ) + ( -4 ) using a number line model

Answer 1

To find the sum, we first draw the number line:

Then, we find the location of the first integer on the line.

It's -6, so 6 units to the left of 0.

The second integer, -4, is negative. So we have to move 4 units to the left on the number line.

Then

The answer is -10.