Addition Worksheet

Solve.

1 a. ______ + 100 = 170
1 b. 30 + ______ = 100
2 a. 10 + ______ = 95
2 b. 26 + ______ = 106
3 a. ______ + 99 = 139
3 b. ______ + 73 = 113
4 a. ______ + 70 = 129
4 b. 40 + ______ = 120
5 a. 29 + ______ = 89
5 b. 70 + ______ = 83
6 a. 16 + ______ = 86
6 b. ______ + 14 = 64
7 a. 50 + ______ = 145
7 b. ______ + 100 = 198
8 a. 72 + ______ = 172
8 b. 46 + ______ = 96
9 a. ______ + 28 = 68
9 b. ______ + 30 = 48
10 a. 98 + ______ = 138
10 b. ______ + 80 = 146
Page 2

Answer Key

1 a. 70    
1 b. 70    
2 a. 85    
2 b. 80    
3 a. 40    
3 b. 40    
4 a. 59    
4 b. 80    
5 a. 60    
5 b. 13    
6 a. 70    
6 b. 50    
7 a. 95    
7 b. 98    
8 a. 100    
8 b. 50    
9 a. 40    
9 b. 18    
10 a. 40    
10 b. 66    


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