

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 5 negative counters to the left side of the mat. 


D. 
Add 3 positive counters to each 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. 
6 
B. 
7 


C. 
–1 
D. 
1 


Hint 


3. 
The temperature rose 34°F from 7:00 A.M. to 5:00 P.M. The temperature was 88°F at 5:00 P.M. Use the equation t + 34 = 88 to find the temperature at 7:00 A.M. 


A. 
62°F 
B. 
44°F 


C. 
52°F 
D. 
54°F 


Hint 


4. 
Solve x + 9 = 11. 


A. 
2 
B. 
2 


C. 
11 
D. 
9 


Hint 


5. 
Solve 1 = p – 16. 


A. 
15 
B. 
16 


C. 
17 
D. 
1 


Hint 


