Addition Worksheet

Solve.

1 a. _________ + 500 = 1500
1 b. _________ + 900 = 1700
2 a. 300 + _________ = 1100
2 b. 100 + _________ = 1100
3 a. _________ + 400 = 500
3 b. 500 + _________ = 1300
4 a. _________ + 200 = 900
4 b. _________ + 500 = 1200
5 a. 900 + _________ = 1000
5 b. _________ + 300 = 1000
6 a. 800 + _________ = 1800
6 b. 400 + _________ = 500
7 a. 400 + _________ = 1200
7 b. 300 + _________ = 900
Page 2

Answer Key

1 a. 1000    
1 b. 800    
2 a. 800    
2 b. 1000    
3 a. 100    
3 b. 800    
4 a. 700    
4 b. 700    
5 a. 100    
5 b. 700    
6 a. 1000    
6 b. 100    
7 a. 800    
7 b. 600    


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