Addition Worksheet

Solve.

1 a. ______ + 20 = 36
1 b. ______ + 63 = 143
2 a. 70 + ______ = 151
2 b. ______ + 50 = 84
3 a. ______ + 45 = 75
3 b. 100 + ______ = 183
4 a. ______ + 90 = 105
4 b. 70 + ______ = 127
5 a. ______ + 16 = 86
5 b. ______ + 60 = 155
6 a. 57 + ______ = 117
6 b. ______ + 14 = 94
7 a. 75 + ______ = 105
7 b. ______ + 83 = 113
8 a. 40 + ______ = 125
8 b. ______ + 70 = 124
9 a. 28 + ______ = 128
9 b. ______ + 18 = 58
10 a. 34 + ______ = 124
10 b. 51 + ______ = 101
Page 2

Answer Key

1 a. 16    
1 b. 80    
2 a. 81    
2 b. 34    
3 a. 30    
3 b. 83    
4 a. 15    
4 b. 57    
5 a. 70    
5 b. 95    
6 a. 60    
6 b. 80    
7 a. 30    
7 b. 30    
8 a. 85    
8 b. 54    
9 a. 100    
9 b. 40    
10 a. 90    
10 b. 50    


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