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

  2.   Solve w + 3 = 11.
    A. 8 B. 9
    C. 7 D. 14
    Hint

  3.   Solve 5 = t 6.
    A. 1 B. 1
    C. 10 D. 11
    Hint

  4.   The sum of the measures of the angles of a triangle is 180. Find the missing measure.
   
    A. 80 B. 90
    C. 100 D. 75
    Hint

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



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