1.   The equation x + 3 = 5 is modeled below. To solve this problem using the model, what should you do first?
   
    A. Add 5 negative counters to the left side of the mat.
    B. Remove 3 positive counters from each side of the mat.
    C. Add 3 positive counters to each side of the mat.
    D. Remove 5 positive counters from the right side of the mat.
    Hint

  2.   Solve x + 3.57 = 6.87.
    A. 3.30 B. 3.20
    C. 10.44 D. 2.43
    Hint

  3.   The temperature rose 34F from 7:00 A.M. to 5:00 P.M. The temperature was 88F at 5:00 P.M. Use the equation t + 34 = 88 to find the temperature at 7:00 A.M.
    A. 62°F B. 52°F
    C. 44°F D. 54F
    Hint

  4.   Solve x + 9 = 11.
    A. 11 B. 2
    C. -2 D. 9
    Hint

  5.   Solve 3.2 + y = 8.7.
    A. 8.7 B. 11.9
    C. -3.2 D. 5.5
    Hint



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