Addition Worksheet

Solve.

1 a. 53 + ______ = 100
1 b. ______ + 63 = 100
2 a. 37 + ______ = 100
2 b. ______ + 40 = 100
3 a. 14 + ______ = 100
3 b. 15 + ______ = 100
4 a. ______ + 81 = 100
4 b. 75 + ______ = 100
5 a. 88 + ______ = 100
5 b. 96 + ______ = 100
6 a. ______ + 8 = 100
6 b. 16 + ______ = 100
7 a. 61 + ______ = 100
7 b. ______ + 82 = 100
8 a. ______ + 28 = 100
8 b. 78 + ______ = 100
9 a. ______ + 18 = 100
9 b. 17 + ______ = 100
10 a. 41 + ______ = 100
10 b. 94 + ______ = 100
Page 2

Answer Key

1 a. 47    
1 b. 37    
2 a. 63    
2 b. 60    
3 a. 86    
3 b. 85    
4 a. 19    
4 b. 25    
5 a. 12    
5 b. 4    
6 a. 92    
6 b. 84    
7 a. 39    
7 b. 18    
8 a. 72    
8 b. 22    
9 a. 82    
9 b. 83    
10 a. 59    
10 b. 6    


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