Addition Worksheet

Solve.

1 a. 60 + ______ = 110
1 b. 10 + ______ = 90
2 a. 50 + ______ = 110
2 b. ______ + 70 = 80
3 a. 80 + ______ = 160
3 b. 30 + ______ = 50
4 a. ______ + 50 = 140
4 b. ______ + 40 = 60
5 a. ______ + 90 = 130
5 b. ______ + 60 = 140
6 a. 80 + ______ = 130
6 b. ______ + 20 = 30
7 a. 90 + ______ = 150
7 b. 60 + ______ = 70
8 a. ______ + 10 = 40
8 b. 50 + ______ = 70
9 a. ______ + 60 = 70
9 b. ______ + 60 = 150
Page 2

Answer Key

1 a. 50    
1 b. 80    
2 a. 60    
2 b. 10    
3 a. 80    
3 b. 20    
4 a. 90    
4 b. 20    
5 a. 40    
5 b. 80    
6 a. 50    
6 b. 10    
7 a. 60    
7 b. 10    
8 a. 30    
8 b. 20    
9 a. 10    
9 b. 90    


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