Addition Worksheet

Solve.

1 a. 38 + ______ = 78
1 b. 30 + ______ = 130
2 a. 90 + ______ = 108
2 b. ______ + 80 = 125
3 a. ______ + 52 = 82
3 b. ______ + 99 = 189
4 a. ______ + 100 = 141
4 b. 87 + ______ = 187
5 a. 50 + ______ = 109
5 b. 50 + ______ = 132
6 a. 10 + ______ = 68
6 b. 45 + ______ = 65
7 a. 10 + ______ = 95
7 b. 42 + ______ = 92
8 a. ______ + 59 = 139
8 b. ______ + 90 = 172
9 a. 10 + ______ = 21
9 b. 29 + ______ = 129
10 a. 36 + ______ = 126
10 b. 40 + ______ = 94
Page 2

Answer Key

1 a. 40    
1 b. 100    
2 a. 18    
2 b. 45    
3 a. 30    
3 b. 90    
4 a. 41    
4 b. 100    
5 a. 59    
5 b. 82    
6 a. 58    
6 b. 20    
7 a. 85    
7 b. 50    
8 a. 80    
8 b. 82    
9 a. 11    
9 b. 100    
10 a. 90    
10 b. 54    


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