Addition Worksheet

Solve.

1 a. 0 + _________ = 900
1 b. 700 + _________ = 900
2 a. _________ + 700 = 900
2 b. 600 + _________ = 1600
3 a. 400 + _________ = 800
3 b. _________ + 100 = 1100
4 a. 400 + _________ = 700
4 b. 600 + _________ = 1200
5 a. _________ + 200 = 1200
5 b. 300 + _________ = 1200
6 a. 900 + _________ = 1400
6 b. 800 + _________ = 1100
7 a. _________ + 600 = 1300
7 b. 300 + _________ = 700
Page 2

Answer Key

1 a. 900    
1 b. 200    
2 a. 200    
2 b. 1000    
3 a. 400    
3 b. 1000    
4 a. 300    
4 b. 600    
5 a. 1000    
5 b. 900    
6 a. 500    
6 b. 300    
7 a. 700    
7 b. 400    


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