Addition of Integers Using models

Which addition equation matches the problem modeled below?

• -4 + -2 = -6
• 4 + 2 = 6
• -4 + -6 + -2

Which subtraction equation matches the model?

• -4 - 2 = -6
• -4 - 6 = -2
• -4 -  2 = -2

Which addition equation matches the problem modeled below?

• -5 +-3 = -2
• -2 + -3 = -5
• -2 +3 = -5

Which subtraction equation matches the model?

• -2 - (- 3) = -5
• -2 - 3 = -5
• -2 - 5 = -3

Which addition equation matches the problem modeled below?

• -6 + -9= 3
• -6 + 9 = 3
• -6 + 3 = 9

Which subtraction problem matches the model?

• -6 - 9 = 3
• 9 - 6 = 3
• 6 - 9 = 3

Which addition equation matches the problem modeled below?

• -2 + -4 = -6
• 2 + -4 = -2
• 4 + 2 = 6

Which subtraction problem matches the model?

• 2 - 4 = -2
• 4 -2 = -2
• 4 - 2 = 2

• 4 + 1 = 5
• 4 - (-1) = 5
• 4 + -1 = 3

• 4 -1 = 3
• -4 + 1 = -3
• 4 +1 = 5