Addition Worksheet

Solve.

1 a. 3 + 90 + ______ + 50 = 150
1 b. 30 + 50 + 4 + ______ = 90
2 a. 50 + 50 + ______ + 4 = 109
2 b. 30 + 10 + ______ + 7 = 53
3 a. 40 + 60 + 3 + ______ = 105
3 b. 10 + 90 + 5 + ______ = 111
4 a. 40 + ______ + 6 + 7 = 63
4 b. 10 + 20 + 6 + ______ = 41
5 a. 7 + 30 + ______ + 30 = 76
5 b. 20 + 2 + 3 + ______ = 75
6 a. 10 + ______ + 3 + 40 = 62
6 b. 20 + 30 + ______ + 6 = 61
7 a. 40 + ______ + 3 + 5 = 78
7 b. 60 + 50 + ______ + 9 = 127
Page 2

Answer Key

1 a. 7    
1 b. 6    
2 a. 5    
2 b. 6    
3 a. 2    
3 b. 6    
4 a. 10    
4 b. 5    
5 a. 9    
5 b. 50    
6 a. 9    
6 b. 5    
7 a. 30    
7 b. 8    


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