Add Integers with Number Lines

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

• -9

• 9

• -15

• 15

• -3 +7 = 10
• 7 + (-3) = 4
• 7 + (-10) = -3
• 10 + (-3) = 7

What equation is modeled?

• 15 + 25 = -10

• 15 + -25 = -10

• -10 + 15 = -10

• -25 + 15 = -10

Look at the number line.

• –2 + 4 =  –2

• –2 + (–4) =  –6

• 4 + (–6) =  –2

• 4 + (–2) =  6

Use the number line to find the sum.
4 + -4 =

• 0

• -0

• -1

• 1

Use the number line to find the sum.
-4 + (-5) =

• -9

• 9

• -1

• 1

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

Mathematical Equivalence

ON

Which number sentence best represents the number line?

• - 5 + 11

• 6 + (-5)

• 11 - 6

• 6 + (-11)

Which equation matches the diagram?

• 3 + (-3) = 0

• 3 + 0 = 3

• (-3) + 0 = -3

Match the integer addition problem with the graph.

• 4 + (-5) = -1

• -5 + 4 = -1

• 4 + (-5) = 0

• None of these