Addition Worksheet

Solve.

1 a. _________ + 800 = 900
1 b. 0 + _________ = 300
2 a. 200 + _________ = 800
2 b. _________ + 100 = 400
3 a. 100 + _________ = 200
3 b. 1000 + _________ = 1900
4 a. _________ + 900 = 1700
4 b. _________ + 500 = 1300
5 a. 800 + _________ = 1200
5 b. _________ + 600 = 1300
6 a. 400 + _________ = 700
6 b. 0 + _________ = 400
7 a. _________ + 0 = 600
7 b. 600 + _________ = 1100
8 a. _________ + 200 = 700
8 b. 200 + _________ = 700
9 a. 300 + _________ = 1000
9 b. 300 + _________ = 1300
10 a. 800 + _________ = 1600
10 b. 300 + _________ = 700
Page 2

Answer Key

1 a. 100    
1 b. 300    
2 a. 600    
2 b. 300    
3 a. 100    
3 b. 900    
4 a. 800    
4 b. 800    
5 a. 400    
5 b. 700    
6 a. 300    
6 b. 400    
7 a. 600    
7 b. 500    
8 a. 500    
8 b. 500    
9 a. 700    
9 b. 1000    
10 a. 800    
10 b. 400    


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