Addition Worksheet

Solve.

1 a. _________ + 100 = 700
1 b. 200 + _________ = 1200
2 a. _________ + 1000 = 1500
2 b. _________ + 900 = 1700
3 a. _________ + 1000 = 1200
3 b. 100 + _________ = 400
4 a. 300 + _________ = 1100
4 b. 200 + _________ = 200
5 a. _________ + 800 = 1600
5 b. 800 + _________ = 900
6 a. ______ + 100 = 100
6 b. _________ + 600 = 800
7 a. _________ + 500 = 500
7 b. _________ + 600 = 900
Page 2

Answer Key

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


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