Addition Worksheet

Solve.

1 a. 40 + 4 + 4 + ______ = 108
1 b. 10 + 20 + ______ + 2 = 37
2 a. ______ + 9 + 5 + 70 = 134
2 b. 10 + 2 + ______ + 90 = 106
3 a. 50 + 20 + ______ + 6 = 81
3 b. ______ + 8 + 70 + 20 = 103
4 a. 40 + 10 + ______ + 3 = 57
4 b. 20 + ______ + 7 + 6 = 73
5 a. 50 + 50 + ______ + 4 = 111
5 b. 3 + 2 + ______ + 50 = 95
6 a. 6 + 3 + 60 + ______ = 89
6 b. 8 + 30 + ______ + 50 = 93
7 a. ______ + 9 + 7 + 10 = 66
7 b. 30 + 3 + ______ + 30 = 70
Page 2

Answer Key

1 a. 60    
1 b. 5    
2 a. 50    
2 b. 4    
3 a. 5    
3 b. 5    
4 a. 4    
4 b. 40    
5 a. 7    
5 b. 40    
6 a. 20    
6 b. 5    
7 a. 40    
7 b. 7    


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