Addition Worksheet

Solve.

1 a. ______ + 6 + 5 + 30 = 51
1 b. 30 + ______ + 3 + 6 = 109
2 a. 30 + 4 + ______ + 70 = 107
2 b. 4 + 80 + ______ + 20 = 107
3 a. ______ + 3 + 6 + 60 = 89
3 b. 40 + ______ + 8 + 30 = 82
4 a. ______ + 70 + 5 + 2 = 107
4 b. 30 + 8 + ______ + 10 = 57
5 a. ______ + 9 + 10 + 10 = 31
5 b. ______ + 8 + 9 + 30 = 87
6 a. 50 + 2 + 3 + ______ = 125
6 b. 40 + 30 + ______ + 6 = 83
7 a. 40 + 3 + ______ + 10 = 60
7 b. 40 + ______ + 6 + 5 = 111
Page 2

Answer Key

1 a. 10    
1 b. 70    
2 a. 3    
2 b. 3    
3 a. 20    
3 b. 4    
4 a. 30    
4 b. 9    
5 a. 2    
5 b. 40    
6 a. 70    
6 b. 7    
7 a. 7    
7 b. 60    


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