Addition Worksheet

Solve.

1 a. 600 + _________ = 1000
1 b. 700 + _________ = 1200
2 a. _________ + 0 = 600
2 b. 200 + _________ = 300
3 a. 600 + _________ = 700
3 b. _________ + 1000 = 1400
4 a. _________ + 0 = 900
4 b. _________ + 200 = 200
5 a. _________ + 1000 = 1000
5 b. _________ + 900 = 1000
6 a. 400 + _________ = 600
6 b. _________ + 100 = 200
7 a. 300 + _________ = 700
7 b. _________ + 900 = 1100
Page 2

Answer Key

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


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