Addition Worksheet

Solve.

1 a. 76 + ______ = 100
1 b. ______ + 94 = 100
2 a. 25 + ______ = 100
2 b. 67 + ______ = 100
3 a. ______ + 91 = 100
3 b. 55 + ______ = 100
4 a. 65 + ______ = 100
4 b. ______ + 46 = 100
5 a. 51 + ______ = 100
5 b. ______ + 89 = 100
6 a. ______ + 77 = 100
6 b. ______ + 8 = 100
7 a. 12 + ______ = 100
7 b. ______ + 29 = 100
8 a. 81 + ______ = 100
8 b. 45 + ______ = 100
9 a. ______ + 68 = 100
9 b. 77 + ______ = 100
10 a. 90 + ______ = 100
10 b. 99 + ______ = 100
Page 2

Answer Key

1 a. 24    
1 b. 6    
2 a. 75    
2 b. 33    
3 a. 9    
3 b. 45    
4 a. 35    
4 b. 54    
5 a. 49    
5 b. 11    
6 a. 23    
6 b. 92    
7 a. 88    
7 b. 71    
8 a. 19    
8 b. 55    
9 a. 32    
9 b. 23    
10 a. 10    
10 b. 1    


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