Addition Worksheet

Solve.

1 a. _________ + 100 = 200
1 b. 200 + _________ = 900
2 a. _________ + 400 = 900
2 b. 400 + _________ = 1000
3 a. 500 + _________ = 1300
3 b. 100 + _________ = 1100
4 a. _________ + 800 = 800
4 b. 200 + _________ = 400
5 a. 300 + _________ = 900
5 b. _________ + 800 = 1700
6 a. _________ + 1000 = 1300
6 b. _________ + 600 = 1100
7 a. _________ + 100 = 400
7 b. _________ + 900 = 1000
Page 2

Answer Key

1 a. 100    
1 b. 700    
2 a. 500    
2 b. 600    
3 a. 800    
3 b. 1000    
4 a. 0    
4 b. 200    
5 a. 600    
5 b. 900    
6 a. 300    
6 b. 500    
7 a. 300    
7 b. 100    


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