Addition Worksheet

Solve.

1 a. _________ + 800 = 1400
1 b. _________ + 600 = 700
2 a. 600 + _________ = 800
2 b. 800 + _________ = 900
3 a. _________ + 800 = 1300
3 b. 900 + _________ = 1800
4 a. 200 + _________ = 1000
4 b. _________ + 100 = 900
5 a. 100 + _________ = 600
5 b. ______ + 100 = 100
6 a. _________ + 1000 = 1800
6 b. 900 + _________ = 1000
7 a. _________ + 500 = 900
7 b. _________ + 400 = 1000
Page 2

Answer Key

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


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