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Positive/Negative Number Line Addition Lesson Worksheet

Lesson 1

 

                                                           

                                                                                     Steps for adding numbers on a number line:

1.  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

      

 

                                                Problem:           

-4+2

 

 Graphic4.png

 

                                                            Solution                     Visualize the number line carefully

Step 1:      

                                                           

Solution                    Start from -4 and move 2 marks right

Step 2:                            

 

                                                            Solution                    The number is -2

Step 3:                        The answer is   -2

                                                            Complete     

 

                                    Try two practice problems:        

A

3+4

 

Graphic2.png

B

-5+6

 

Graphic5.png

 

 

 

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