1.   Find 4 + (–5).
    A. –1 B. 1
    C. –9 D. 9
    Hint

  2.   Find 6 + (–10).
    A. –16 B. –4
    C. 4 D. 16
    Hint

  3.   Find –5 + (–4).
    A. 1 B. –1
    C. –9 D. 9
    Hint

  4.   Choose the addition sentence that represents the model.
   
    A. –3 + (–1) = –4 B. –5 + 1 = –4
    C. 6 + (–2) = 4 D. 5 + (–1) = 4
    Hint

  5.   Sandy has $28 dollars. She owes her mother $15. After paying her mother, how much money does she have left?
    A. –$13 B. $43
    C. –$43 D. $13
    Hint