Addition Worksheet

Solve.

1 a. 200 + _________ = 800
 
1 b. 700 + _________ = 900
 
2 a. 900 + _________ = 1100
 
2 b. _________ + 100 = 600
 
3 a. 600 + _________ = 900
 
3 b. _________ + 100 = 300
 
4 a. 900 + _________ = 1200
 
4 b. _________ + 0 = 500
 
5 a. 800 + _________ = 900
 
5 b. _________ + 200 = 700
 
6 a. 600 + _________ = 600
 
6 b. 700 + _________ = 800
 
7 a. 600 + _________ = 1500
 
7 b. 400 + _________ = 400
 
8 a. 800 + _________ = 1300
 
8 b. _________ + 500 = 1200
 
Page 2

Answer Key

1 a. 600    
1 b. 200    
2 a. 200    
2 b. 500    
3 a. 300    
3 b. 200    
4 a. 300    
4 b. 500    
5 a. 100    
5 b. 500    
6 a. 0    
6 b. 100    
7 a. 900    
7 b. 0    
8 a. 500    
8 b. 700    


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