8/16 TS Connecting Adding and Subtracting on Number Line

Draw a number line for the equation:

6 + 3 = 9

Remember to start at zero!

Draw a number line for the equation:

-6 + 3 = -3

Remember to start at zero!

Draw a number line for the equation:

2 + (-5) = -3

Remember to start at zero!

Draw a number line for the equation:

2 - 5 = -3

Remember to start at zero!

Look at questions 3 and 4. What do you notice about the two graphs?

Use the number line to find the sum.
3 + (-12) =

• -9
• 9
• -15
• 15

Use the number line to find the sum.
3 - 12 =

• -9
• 9
• -15
• 15

Draw a number line to model 6 + (- 9)

• 
• 
• 
• 

What number line models 6 - 9

• 
• 
• 
• 

Solve the problem.
5 + (-8)

• 3
• -3
• 13
• -13