Addition Worksheet

Solve.

1 a. 88 + ______ = 100
1 b. 83 + ______ = 100
2 a. 31 + ______ = 100
2 b. 43 + ______ = 100
3 a. ______ + 73 = 100
3 b. ______ + 60 = 100
4 a. ______ + 22 = 100
4 b. 15 + ______ = 100
5 a. ______ + 50 = 100
5 b. 47 + ______ = 100
6 a. ______ + 95 = 100
6 b. 4 + ______ = 100
7 a. ______ + 33 = 100
7 b. ______ + 89 = 100
8 a. 71 + ______ = 100
8 b. ______ + 64 = 100
9 a. ______ + 6 = 100
9 b. 90 + ______ = 100
10 a. 25 + ______ = 100
10 b. ______ + 11 = 100
Page 2

Answer Key

1 a. 12    
1 b. 17    
2 a. 69    
2 b. 57    
3 a. 27    
3 b. 40    
4 a. 78    
4 b. 85    
5 a. 50    
5 b. 53    
6 a. 5    
6 b. 96    
7 a. 67    
7 b. 11    
8 a. 29    
8 b. 36    
9 a. 94    
9 b. 10    
10 a. 75    
10 b. 89    


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