Addition Worksheet

Solve.

1 a. ______ + 51 = 91
1 b. ______ + 79 = 109
2 a. 46 + ______ = 136
2 b. ______ + 78 = 98
3 a. 80 + ______ = 131
3 b. ______ + 79 = 179
4 a. 30 + ______ = 50
4 b. ______ + 31 = 91
5 a. 60 + ______ = 131
5 b. ______ + 19 = 109
6 a. 86 + ______ = 186
6 b. ______ + 60 = 82
7 a. ______ + 20 = 50
7 b. ______ + 74 = 114
8 a. 30 + ______ = 124
8 b. 18 + ______ = 48
9 a. 20 + ______ = 81
9 b. 30 + ______ = 62
10 a. 34 + ______ = 124
10 b. ______ + 91 = 151
Page 2

Answer Key

1 a. 40    
1 b. 30    
2 a. 90    
2 b. 20    
3 a. 51    
3 b. 100    
4 a. 20    
4 b. 60    
5 a. 71    
5 b. 90    
6 a. 100    
6 b. 22    
7 a. 30    
7 b. 40    
8 a. 94    
8 b. 30    
9 a. 61    
9 b. 32    
10 a. 90    
10 b. 60    


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