Addition Worksheet

Solve.

1 a. ______ + 8 + 30 + 30 = 76
1 b. 40 + 50 + 3 + ______ = 100
2 a. ______ + 9 + 9 + 20 = 58
2 b. 40 + ______ + 2 + 60 = 108
3 a. ______ + 30 + 7 + 3 = 80
3 b. ______ + 4 + 2 + 80 = 136
4 a. 30 + ______ + 5 + 70 = 107
4 b. ______ + 20 + 5 + 50 = 79
5 a. 50 + 5 + ______ + 20 = 79
5 b. 40 + 6 + 6 + ______ = 72
6 a. ______ + 9 + 2 + 30 = 81
6 b. 30 + ______ + 2 + 10 = 48
7 a. 20 + ______ + 7 + 3 = 40
7 b. 60 + ______ + 2 + 5 = 117
Page 2

Answer Key

1 a. 8    
1 b. 7    
2 a. 20    
2 b. 6    
3 a. 40    
3 b. 50    
4 a. 2    
4 b. 4    
5 a. 4    
5 b. 20    
6 a. 40    
6 b. 6    
7 a. 10    
7 b. 50    


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