Grade 4 - Progress in Mathematics

90 Chapter 2

Lessons 1–11

30. The Madison Arts and Crafts
    Fair had 33 art exhibits and 49
    craft exhibits. About how many
    exhibits were at the Fair?
    31. At the City Zoo there are more
    zebras than lions and more
    monkeys than zebras. Are
    there more monkeys or lions?

Find the sum. Name the addition property (See pp. 68 – 71.)

or strategy you used.

1 1. 8 
 0 1 2. 9 
 6 1 3. 7 
 8 1 4. 6 
 5

1 5. 6 
 7 
 4 1 6. 8 
 0 
 3 
 8 1 7. 3 
 7 
 8

(See Still More Practice,p. 462.)

(See pp. 86– 89.)

Add or subtract. Then check the answer. (See pp. 82– 85.)

9. 
   
   
   
   10. 
       
       
       
       11. 
           
           
           
           12. 
               
               
               
               13. 
                   
               
               
               
               
           
           
           
           
       
       
       
       
   
   
   
   


10. 
    
    
    
    15. 
        
        
        
        16. 
            
            
            
            17. 
                
                
                
                18. 6759
                     6542
                
                
                
                
            
            
            
            
        
        
        
        
    
    
    
    

$94.36

$40.13

798

 755

549

 427

56

 16

$42.04

3.41


$10.22

$23.74

1.12


$23.13

3051


 1738

205

381


 413

153

412


 323

Choose your own variable to write your answer. (See pp. 74–75.)

8. Tim called some friends before lunch. After lunch
   he called 6 more friends. What expression shows
   how many friends Tim called altogether?

Round to estimate. (See pp. 80– 81.)

19. 
    
    
    
    20. 
        
        
        
        21. 
            
            
            
            22. 
                
                
                
                23. 65,571
                     4,497
                
                
                
                
            
            
            
            
        
        
        
        
    
    
    
    

4327


 631

568

 399

$54.92


 23.26

42


 38

Find the value of the variable. (See pp. 74– 77.)

24. 3
    n 11 25. a
    7  15 26. 7 x
    0


25. 12 y 7 28. h 9  8 29. 9 c 0

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