Addition Worksheet

Solve.

1 a. 1000 + _________ = 1700
1 b. _________ + 100 = 300
2 a. _________ + 600 = 900
2 b. 500 + _________ = 1100
3 a. _________ + 600 = 1000
3 b. _________ + 900 = 1000
4 a. _________ + 900 = 1100
4 b. 400 + _________ = 800
5 a. 200 + _________ = 400
5 b. 900 + _________ = 1700
6 a. 100 + _________ = 300
6 b. _________ + 0 = 700
7 a. 700 + _________ = 1700
7 b. _________ + 600 = 700
8 a. _________ + 600 = 1100
8 b. 600 + _________ = 900
9 a. 1000 + _________ = 1500
9 b. _________ + 700 = 1500
10 a. _________ + 0 = 500
10 b. _________ + 100 = 200
Page 2

Answer Key

1 a. 700    
1 b. 200    
2 a. 300    
2 b. 600    
3 a. 400    
3 b. 100    
4 a. 200    
4 b. 400    
5 a. 200    
5 b. 800    
6 a. 200    
6 b. 700    
7 a. 1000    
7 b. 100    
8 a. 500    
8 b. 300    
9 a. 500    
9 b. 800    
10 a. 500    
10 b. 100    


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