Addition Worksheet

Solve.

1 a. ______ + 10 + 60 + 60 = 160
 
1 b. 40 + 40 + 40 + ______ = 180
 
2 a. 70 + 90 + ______ + 70 = 280
 
2 b. 40 + 40 + ______ + 90 = 240
 
3 a. ______ + 30 + 50 + 30 = 120
 
3 b. 90 + ______ + 50 + 40 = 240
 
4 a. 90 + ______ + 80 + 50 = 250
 
4 b. 40 + 80 + ______ + 70 = 220
 
5 a. 10 + 40 + ______ + 90 = 230
 
5 b. 20 + 30 + ______ + 30 = 110
 
6 a. ______ + 10 + 20 + 30 = 140
 
6 b. 10 + 30 + ______ + 80 = 170
 
7 a. 80 + 70 + ______ + 50 = 210
 
7 b. ______ + 80 + 10 + 80 = 230
 
Page 2

Answer Key

1 a. 30    
1 b. 60    
2 a. 50    
2 b. 70    
3 a. 10    
3 b. 60    
4 a. 30    
4 b. 30    
5 a. 90    
5 b. 30    
6 a. 80    
6 b. 50    
7 a. 10    
7 b. 60    


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