

1. 
The equation x + 3 = 5 is modeled below. To solve this problem using the model, what should you do first? 





A. 
Remove 3 positive counters from each side of the mat. 


B. 
Add 5 negative counters to the left side of the mat. 


C. 
Remove 5 positive counters from the right side of the mat. 


D. 
Add 3 positive counters to each side of the mat. 


Hint 


2. 
Solve 5 = t – 6. 


A. 
10 
B. 
–1 


C. 
11 
D. 
1 


Hint 


3. 
Solve x + 3.57 = 6.87. 


A. 
2.43 
B. 
3.20 


C. 
3.30 
D. 
10.44 


Hint 


4. 
Solve x + 9 = 11. 


A. 
2 
B. 
2 


C. 
9 
D. 
11 


Hint 


5. 
Solve 1 = p – 16. 


A. 
1 
B. 
16 


C. 
15 
D. 
17 


Hint 


