Addition Worksheet

Solve.

1 a. 50 + ______ = 99
1 b. ______ + 22 = 92
2 a. ______ + 50 = 70
2 b. ______ + 25 = 95
3 a. 50 + ______ = 144
3 b. ______ + 20 = 116
4 a. ______ + 63 = 93
4 b. ______ + 36 = 56
5 a. ______ + 90 = 159
5 b. ______ + 33 = 83
6 a. ______ + 42 = 72
6 b. 20 + ______ = 118
7 a. ______ + 100 = 150
7 b. 80 + ______ = 120
8 a. 90 + ______ = 180
8 b. 40 + ______ = 100
9 a. ______ + 40 = 120
9 b. ______ + 10 = 89
10 a. ______ + 80 = 95
10 b. ______ + 100 = 136
Page 2

Answer Key

1 a. 49    
1 b. 70    
2 a. 20    
2 b. 70    
3 a. 94    
3 b. 96    
4 a. 30    
4 b. 20    
5 a. 69    
5 b. 50    
6 a. 30    
6 b. 98    
7 a. 50    
7 b. 40    
8 a. 90    
8 b. 60    
9 a. 80    
9 b. 79    
10 a. 15    
10 b. 36    


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