Addition Worksheet

Solve.

1 a. 4 + 40 + _________ = 544
 
1 b. _________ + 50 + 0 = 850
 
2 a. _________ + 30 + 300 = 331
 
2 b. 8 + ______ + 100 = 108
 
3 a. 1 + ______ + 100 = 101
 
3 b. _________ + 40 + 1 = 441
 
4 a. 3 + ______ + 80 = 183
 
4 b. 60 + 0 + _________ = 260
 
5 a. ______ + 10 + 100 = 115
 
5 b. 6 + _________ + 300 = 366
 
6 a. 40 + _________ + 300 = 343
 
6 b. 0 + _________ + 500 = 540
 
7 a. 4 + 40 + _________ = 844
 
7 b. 2 + 40 + _________ = 242
 
8 a. _________ + 2 + 600 = 642
 
8 b. 9 + 90 + _________ = 999
 
Page 2

Answer Key

1 a. 500    
1 b. 800    
2 a. 1    
2 b. 0    
3 a. 0    
3 b. 400    
4 a. 100    
4 b. 200    
5 a. 5    
5 b. 60    
6 a. 3    
6 b. 40    
7 a. 800    
7 b. 200    
8 a. 40    
8 b. 900    


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