Number Line Addition

Lesson 1

Steps for adding numbers on a number line.

1. The starting point is the first number of the problem (marked with a red dot).

2. Adding a negative number to a positive number: move left from the starting point.

3. Adding a positive number to a negative number: move right from the starting point.

4. Adding a negative number to a negative number: move left from the starting point.

5. Adding a positive number to a positive number: move right from the starting point.

Step 1: Start from -4

Step 2: Move 6 marks left.

The number is -10 Answer: -10

Two Practice problems

1

               1+17

2.

                     -4(-6)