Addition Worksheet

Solve.

1 a. 1000 + ____________ = 2000
 
1 b. 900 + _________ = 1200
 
2 a. _________ + 400 = 800
 
2 b. 400 + _________ = 500
 
3 a. 0 + _________ = 400
 
3 b. 700 + _________ = 1200
 
4 a. _________ + 100 = 700
 
4 b. 0 + _________ = 900
 
5 a. 0 + _________ = 1000
 
5 b. 1000 + _________ = 1300
 
6 a. 600 + _________ = 700
 
6 b. 700 + _________ = 900
 
7 a. 800 + _________ = 800
 
7 b. _________ + 700 = 1500
 
8 a. _________ + 700 = 900
 
8 b. _________ + 400 = 600
 
Page 2

Answer Key

1 a. 1000    
1 b. 300    
2 a. 400    
2 b. 100    
3 a. 400    
3 b. 500    
4 a. 600    
4 b. 900    
5 a. 1000    
5 b. 300    
6 a. 100    
6 b. 200    
7 a. 0    
7 b. 800    
8 a. 200    
8 b. 200    


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