Addition Worksheet

Solve.

1 a. 6 + 30 + 2 + ______ = 78
1 b. ______ + 2 + 90 + 50 = 147
2 a. 40 + 80 + ______ + 3 = 129
2 b. ______ + 70 + 9 + 6 = 115
3 a. ______ + 50 + 2 + 2 = 134
3 b. 6 + ______ + 60 + 50 = 122
4 a. ______ + 2 + 4 + 90 = 146
4 b. ______ + 6 + 5 + 50 = 111
5 a. 20 + ______ + 8 + 2 = 80
5 b. 7 + 7 + ______ + 20 = 44
6 a. ______ + 5 + 9 + 50 = 74
6 b. ______ + 6 + 8 + 30 = 64
7 a. 9 + 6 + 80 + ______ = 115
7 b. 10 + ______ + 9 + 60 = 84
Page 2

Answer Key

1 a. 40    
1 b. 5    
2 a. 6    
2 b. 30    
3 a. 80    
3 b. 6    
4 a. 50    
4 b. 50    
5 a. 50    
5 b. 10    
6 a. 10    
6 b. 20    
7 a. 20    
7 b. 5    


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