Integers Operation Models

Sarah bought 5 shirts for $6 each and spent $7 on lunch. She paid for the shirts and lunch using her debit card. The change in the balance of her debit card can be represented by the expression below.

Which integer represents the charge in balance of Sarah's debt card account from these purchases? Meaning, solve the expression from above.

• 23
  
  

• -18

• -37

• -4

• A
• B
• C
• D

• -4 + 5
• 4 + 5
• 4 + (-5)
• -4 + (-5)

• -5 + 3 = -2
• 5 + (-3) = 2
• 5 + 3 = 8
• -5 + (-3) = -8

• A
• B
• C
• D

Which addition equation matches the problem modeled below?

• -2 + -4 = -6

• 2 + -4 = -2

• 4 + 2 = 6

Which addition equation matches the problem modeled below?

• -5 +-3 = -2

• -2 + -3 = -5

• -2 +3 = -5

Which equation represents this model?

• 5- 8= -3

• -3 - 2 = -5

• 3-8 = -5

• -3 + 5 = -2

• A
• B
• C
• D

• 4 + 2 = 6
• -4 + 2 = -2
• 4 + (-2) = 2
• -4 + (-2) = -6