Addition Worksheet

Solve.

1 a. _________ + 60 + 300 = 360
 
1 b. _________ + 400 + 10 = 413
 
2 a. 7 + _________ + 600 = 637
 
2 b. _________ + 60 + 900 = 963
 
3 a. 3 + _________ + 70 = 773
 
3 b. 6 + _________ + 100 = 186
 
4 a. 80 + _________ + 700 = 786
 
4 b. 20 + 3 + ______ = 123
 
5 a. _________ + 30 + 800 = 830
 
5 b. 1 + 20 + _________ = 821
 
6 a. 0 + ______ + 90 = 190
 
6 b. 2 + _________ + 30 = 732
 
7 a. 500 + _________ + 6 = 526
 
7 b. _________ + 80 + 300 = 382
 
8 a. _________ + 0 + 300 = 320
 
8 b. 40 + _________ + 900 = 941
 
Page 2

Answer Key

1 a. 0    
1 b. 3    
2 a. 30    
2 b. 3    
3 a. 700    
3 b. 80    
4 a. 6    
4 b. 100    
5 a. 0    
5 b. 800    
6 a. 100    
6 b. 700    
7 a. 20    
7 b. 2    
8 a. 20    
8 b. 1    


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