Addition Worksheet

Solve.

1 a. _________ + 900 = 1000
1 b. _________ + 700 = 800
2 a. _________ + 400 = 800
2 b. 0 + _________ = 200
3 a. 700 + _________ = 1600
3 b. 100 + _________ = 800
4 a. _________ + 500 = 1300
4 b. ____________ + 1000 = 2000
5 a. 300 + _________ = 700
5 b. 400 + _________ = 700
6 a. _________ + 600 = 600
6 b. _________ + 600 = 1400
7 a. ______ + 0 = 100
7 b. 300 + _________ = 500
Page 2

Answer Key

1 a. 100    
1 b. 100    
2 a. 400    
2 b. 200    
3 a. 900    
3 b. 700    
4 a. 800    
4 b. 1000    
5 a. 400    
5 b. 300    
6 a. 0    
6 b. 800    
7 a. 100    
7 b. 200    


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