Addition Worksheet

Solve.

1 a. 40 + 70 + 4 + ______ = 122
1 b. 40 + 50 + ______ + 6 = 103
2 a. ______ + 9 + 6 + 50 = 105
2 b. 6 + 50 + 3 + ______ = 89
3 a. 10 + 6 + 4 + ______ = 110
3 b. 30 + ______ + 5 + 2 = 97
4 a. 2 + ______ + 9 + 40 = 91
4 b. ______ + 10 + 3 + 7 = 100
5 a. ______ + 10 + 3 + 50 = 66
5 b. ______ + 4 + 9 + 70 = 113
6 a. 50 + 2 + ______ + 10 = 69
6 b. 6 + 8 + 20 + ______ = 84
7 a. 8 + ______ + 9 + 10 = 117
7 b. 4 + ______ + 80 + 50 = 140
Page 2

Answer Key

1 a. 8    
1 b. 7    
2 a. 40    
2 b. 30    
3 a. 90    
3 b. 60    
4 a. 40    
4 b. 80    
5 a. 3    
5 b. 30    
6 a. 7    
6 b. 50    
7 a. 90    
7 b. 6    


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