Addition Worksheet

Solve.

1 a. 100 + ______ = 179
1 b. ______ + 93 = 143
2 a. ______ + 10 = 98
2 b. ______ + 90 = 173
3 a. 90 + ______ = 139
3 b. 50 + ______ = 124
4 a. ______ + 86 = 106
4 b. 90 + ______ = 127
5 a. 97 + ______ = 147
5 b. 30 + ______ = 110
6 a. ______ + 57 = 127
6 b. 20 + ______ = 86
7 a. ______ + 90 = 164
7 b. ______ + 20 = 98
8 a. 90 + ______ = 185
8 b. 50 + ______ = 128
9 a. 80 + ______ = 93
9 b. 70 + ______ = 108
10 a. 50 + ______ = 99
10 b. 84 + ______ = 104
Page 2

Answer Key

1 a. 79    
1 b. 50    
2 a. 88    
2 b. 83    
3 a. 49    
3 b. 74    
4 a. 20    
4 b. 37    
5 a. 50    
5 b. 80    
6 a. 70    
6 b. 66    
7 a. 74    
7 b. 78    
8 a. 95    
8 b. 78    
9 a. 13    
9 b. 38    
10 a. 49    
10 b. 20    


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