7th Grade Math

EP8 Extra Practice

Extra Practice

Multi-Part Lesson 3-2 (continued)

PARTS B C PAGES 144–151

Add or subtract. Write in simplest form.

1. 
   

   ^14 - ^3
   12
   2. 73 + ^6
   14
   3. ^14 + ^35

   
   


2. 
   

   94 + ^12 5. ^57 - ^46 6. ^34 - ^16

   
   


3. 
   

   ^35 + ^3
   4
   8. 32 - ^18 9. 109 + ^13

   
   


4. 
   
   
   
   • _^3
     4
     
     
     • ^78 11. 83 + ^7
       12
       12. ^35 - _^23
     
     
     
     
   
   
   
   


5. 
   

   52 + (^) (- 72 ) 14. - ^35 - (^) (- ^56 ) 15. - _^7
   12

   
   

• _^3
  4

Evaluate each expression if a = _^2

3

and b = _^7

12

.

16. _^1
    5
    
    
    • a 17. a - ^1
      2
      18. b + ^7
      8
    
    
    
    


17. _^7
    8
    
    
    • a 20. a + b 21. a - b
    
    
    
    

PART D PAGES 152–156

Add or subtract. Write in simplest form.

1. 2 _^1
   3
   
   
   • 1 ^1
     3
     2. 5 ^2
     7
     
     
     • 2 ^3
       7
       3. 6 ^3
       8
       
       
       • 7 _^1
         8
       
       
       
       
     
     
     
     
   
   
   
   


2. 2 _^3
   4
   
   
   • 1 ^1
     4
     5. 5 ^1
     2
     
     
     • 3 ^1
       4
       6. 2 ^2
       3
       
       
       • 4 _^1
         9
       
       
       
       
     
     
     
     
   
   
   
   


3. 7 _^4
   5
   
   
   • 9 ^3
     10
     8. 3 ^3
     4
     
     
     • 5 ^5
       8
       9. 10 ^2
       3
       
       
       • 5 _^6
         7
       
       
       
       
     
     
     
     
   
   
   
   


4. 17 _^2
   9
   
   
   • 12 ^1
     3
     11. 6 ^5
     12
     
     
     • 12 ^5
       12
       12. 7 ^1
       4
       
       
       • 15 _^5
         6
       
       
       
       
     
     
     
     
   
   
   
   


5. 6 _^1
   8
   
   
   • 4 ^2
     3
     14. 7 - 6 ^4
     9
     15. 8 _^1
     12
     
     
     • 12 _^6
       11
     
     
     
     
   
   
   
   


6. 7 _^2
   3
   
   
   • 8 ^1
     4
     17. 12 ^3
     11
     
     
     • 14 ^3
       13
       18. 21 ^1
       3
       
       
       • 15 _^3
         8
       
       
       
       
     
     
     
     
   
   
   
   

Multi-Part Lesson 3-3: Multiply and Divide Fractions

PARTS A B PAGES 158–165

Multiply. Write in simplest form.

1. ^2
   3
   × ^3
   5
   2. ^1
   6
   × ^2
   5
   3. ^4
   9
   × ^3
   7
   4. ^5
   12
   × ^6
   11


2. ^3
   8
   × ^8
   9
   6. ^2
   5
   × ^5
   8
   7. ^7
   15
   × ^3
   21
   8. ^5
   6
   × ^15
   16


3. ^2
   3
   × ^3
   13
   10. ^4
   9
   × ^1
   6
   11. 3 × ^1
   9
   12. 5 × ^6
   7


4. ^3
   5
   × 15 14. 3 ^1
   2
   × 4 ^1
   3
   15. ^4
   5
   × 2 ^3
   4
   16. 6 ^1
   8
   × 5 _^1
   7


5. 2 ^2
   3
   × 2 ^1
   4
   18. ^7
   8
   × 16 19. 5 ^1
   5
   × 2 ^1
   2
   20. 7 × ^1
   14


6. 22 × ^3
   11
   22. 8 ^2
   3
   × 1 ^1
   2
   23. 4 × 6 ^1
   2
   24. ^1
   2
   × 10 ^2
   3


7. ^2
   3
   × 21 ^1
   3
   26. ^7
   8
   × ^8
   7
   27. 21 × ^1
   2
   28. 11 × ^1
   4

EP2_EP36_ExtPract_M1_895130.indd EP8 1/6/10 11:46 AM