1.   Which equation does the model represent?
   
    A. x + (-5) = 1 B. x + 5 = 1
    C. x + 5 = -1 D. x + (-5) = -1
    Hint

  2.   Solve the equation -8 = a + (-3).
    A. -5 B. -11
    C. 5 D. 11
    Hint

  3.   Which equation does the model represent?
   
    A. x + (-2) = -3 B. x + (-3) = -2
    C. x + 3 = 2 D. x + 2 = 3
    Hint

  4.   Solve the equation x + 8 = 4.
    A. x = 4 B. x = -4
    C. x = 12 D. xv = -12
    Hint

  5.   Carmen and her friend Marva have a total of 15 pets. If Marva has 12 pets, how many pets does Carmen have?
    A. 31 B. 27
    C. 3 D. 5
    Hint



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