Addition Worksheet

Solve.

1 a. 0 + ___ = 0
1 b. 100 + _________ = 400
2 a. 300 + _________ = 1300
2 b. 800 + _________ = 1100
3 a. 400 + _________ = 600
3 b. _________ + 400 = 1200
4 a. _________ + 400 = 500
4 b. 400 + _________ = 1200
5 a. 700 + _________ = 700
5 b. 600 + _________ = 1300
6 a. _________ + 100 = 600
6 b. 800 + _________ = 1400
7 a. _________ + 900 = 1200
7 b. 900 + _________ = 1900
8 a. _________ + 100 = 300
8 b. 800 + _________ = 1300
9 a. 900 + _________ = 1000
9 b. _________ + 900 = 1600
10 a. _________ + 600 = 900
10 b. 500 + _________ = 900
Page 2

Answer Key

1 a. 0    
1 b. 300    
2 a. 1000    
2 b. 300    
3 a. 200    
3 b. 800    
4 a. 100    
4 b. 800    
5 a. 0    
5 b. 700    
6 a. 500    
6 b. 600    
7 a. 300    
7 b. 1000    
8 a. 200    
8 b. 500    
9 a. 100    
9 b. 700    
10 a. 300    
10 b. 400    


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