Addition Worksheet

Solve.

1 a. ______ + 60 + 70 + 80 = 300
 
1 b. 50 + ______ + 30 + 60 = 190
 
2 a. 40 + 10 + 70 + ______ = 190
 
2 b. 60 + ______ + 70 + 10 = 200
 
3 a. ______ + 30 + 20 + 80 = 180
 
3 b. 10 + ______ + 50 + 30 = 150
 
4 a. 80 + ______ + 70 + 30 = 250
 
4 b. 40 + 30 + 80 + ______ = 220
 
5 a. 70 + 70 + 50 + _________ = 250
 
5 b. 70 + ______ + 80 + 80 = 260
 
6 a. 70 + 90 + 70 + _________ = 310
 
6 b. 10 + ______ + 40 + 10 = 80
 
7 a. 60 + ______ + 60 + 20 = 170
 
7 b. 10 + 20 + 30 + ______ = 150
 
8 a. ______ + 10 + 60 + 10 = 140
 
8 b. 70 + 50 + ______ + 90 = 260
 
Page 2

Answer Key

1 a. 90    
1 b. 50    
2 a. 70    
2 b. 60    
3 a. 50    
3 b. 60    
4 a. 70    
4 b. 70    
5 a. 60    
5 b. 30    
6 a. 80    
6 b. 20    
7 a. 30    
7 b. 90    
8 a. 60    
8 b. 50    


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