Addition Worksheet

Solve.

1 a. 2 + _________ + 80 = 582
1 b. 1 + 60 + _________ = 561
2 a. 1 + _________ + 100 = 171
2 b. 5 + _________ + 200 = 245
3 a. 10 + _________ + 700 = 719
3 b. _________ + 40 + 800 = 848
4 a. 4 + _________ + 70 = 274
4 b. _________ + 300 + 90 = 394
5 a. 0 + _________ + 500 = 540
5 b. 20 + 5 + _________ = 325
6 a. 2 + 100 + ______ = 132
6 b. 2 + _________ + 70 = 472
7 a. 1 + 80 + _________ = 281
7 b. 4 + 80 + _________ = 284
Page 2

Answer Key

1 a. 500    
1 b. 500    
2 a. 70    
2 b. 40    
3 a. 9    
3 b. 8    
4 a. 200    
4 b. 4    
5 a. 40    
5 b. 300    
6 a. 30    
6 b. 400    
7 a. 200    
7 b. 200    


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