Addition Worksheet

Solve.

1 a. 80 + ______ = 143
1 b. 10 + ______ = 48
2 a. 100 + ______ = 164
2 b. 22 + ______ = 82
3 a. ______ + 90 = 121
3 b. ______ + 66 = 166
4 a. ______ + 20 = 42
4 b. ______ + 70 = 99
5 a. ______ + 58 = 108
5 b. ______ + 80 = 178
6 a. 70 + ______ = 85
6 b. ______ + 70 = 166
7 a. 50 + ______ = 132
7 b. 70 + ______ = 80
8 a. ______ + 68 = 158
8 b. ______ + 20 = 92
9 a. ______ + 60 = 136
9 b. 20 + ______ = 50
10 a. 47 + ______ = 147
10 b. 60 + ______ = 86
Page 2

Answer Key

1 a. 63    
1 b. 38    
2 a. 64    
2 b. 60    
3 a. 31    
3 b. 100    
4 a. 22    
4 b. 29    
5 a. 50    
5 b. 98    
6 a. 15    
6 b. 96    
7 a. 82    
7 b. 10    
8 a. 90    
8 b. 72    
9 a. 76    
9 b. 30    
10 a. 100    
10 b. 26    


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