Addition Worksheet

Solve.

1 a. 60 + _________ + 900 = 965
 
1 b. 4 + _________ + 60 = 164
 
2 a. 400 + _________ + 8 = 438
 
2 b. 5 + _________ + 500 = 505
 
3 a. 20 + 9 + _________ = 729
 
3 b. 90 + _________ + 500 = 593
 
4 a. 7 + 10 + _________ = 617
 
4 b. 90 + 1 + _________ = 391
 
5 a. 90 + 1 + _________ = 691
 
5 b. 7 + _________ + 400 = 457
 
6 a. _________ + 70 + 500 = 578
 
6 b. 20 + 4 + _________ = 424
 
7 a. 8 + _________ + 400 = 458
 
7 b. 3 + 700 + _________ = 773
 
8 a. ______ + 8 + 100 = 148
 
8 b. _________ + 60 + 300 = 365
 
Page 2

Answer Key

1 a. 5    
1 b. 100    
2 a. 30    
2 b. 0    
3 a. 700    
3 b. 3    
4 a. 600    
4 b. 300    
5 a. 600    
5 b. 50    
6 a. 8    
6 b. 400    
7 a. 50    
7 b. 70    
8 a. 40    
8 b. 5    


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