Addition Worksheet

Solve.

1 a. 60 + 50 + 50 + ______ = 220
 
1 b. 30 + 10 + ______ + 30 = 80
 
2 a. ______ + 70 + 90 + 50 = 250
 
2 b. 90 + 70 + ______ + 20 = 200
 
3 a. 20 + 50 + ______ + 90 = 190
 
3 b. 60 + ______ + 30 + 30 = 130
 
4 a. 70 + 70 + 90 + _________ = 310
 
4 b. 50 + 20 + 60 + ______ = 160
 
5 a. ______ + 30 + 10 + 70 = 150
 
5 b. 50 + 70 + ______ + 10 = 180
 
6 a. 70 + 50 + ______ + 50 = 180
 
6 b. 80 + ______ + 60 + 10 = 230
 
7 a. 70 + ______ + 40 + 50 = 210
 
7 b. 30 + 30 + 60 + ______ = 200
 
8 a. 30 + 60 + ______ + 70 = 220
 
8 b. 10 + ______ + 70 + 60 = 180
 
Page 2

Answer Key

1 a. 60    
1 b. 10    
2 a. 40    
2 b. 20    
3 a. 30    
3 b. 10    
4 a. 80    
4 b. 30    
5 a. 40    
5 b. 50    
6 a. 10    
6 b. 80    
7 a. 50    
7 b. 80    
8 a. 60    
8 b. 40    

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