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

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

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

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

  5.   Solve 1 = p 16.
    A. 1 B. 17
    C. -15 D. 16
    Hint



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