Add and Subtract Using Number Line

• 7 + 10 = 3
• -7 + 10 = 3
• -7 - 10 = 3
• -7 + 3 = 10

Look at the number line.

• –2 + 4 =  –2

• –2 + (–4) =  –6

• 4 + (–6) =  –2

• 4 + (–2) =  6

• -5 - 4 = -1
• -5 + 1 = -1
• -5 + 4 = -1
• 5 + (-4) = 1

Choose the integer operation problem(s) that this number line represents.

• -7 + 6 = 13

• -7 + 13 = 6

• -7 - (-13) = 6

• -7 + (-13) = 6

• None of these

Choose the integer operation problem(s) that this number line represents.

• 4 + (-6) = -2

• 4 - 6 = -2

• 4 + (-2) = -6

• 4 - (-2) = 6

• None of these

• -15 - 5 = -10
• -15 - 5 = -20
• 15 - 5 = 20
• -15 - (-5) = -20

Choose the equation that best represents the model.

• 2 + (–6) =  –4

• 0 – 6 = –6

• –6 + 8 = 2

• 8 + (–6) = 2

Which addition equation matches the problem modeled below?

• -6 + (-9) = 3

• -6 + 9 = 3

• -6 + 3 = 9

• 9 + (-3) = -6

What problem is shown with this number line?

• 3 - 2

• 2 - 3

• 3 - (-2)

• 5 - 2

• -7 + 4 = -3
• 7 + (-4) = 3
• 7 - 4 = 11
• 7 + (-4) = -11