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.   If you decrease a number by 4 the result is 3. Solve n 4 = 3 to find the number?
    A. 7 B. 1
    C. 1 D. 6
    Hint

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

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

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



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