Addition Worksheet

Solve.

1 a. 20 + 2 + ______ + 80 = 106
1 b. 50 + 40 + 2 + ______ = 95
2 a. ______ + 50 + 9 + 7 = 146
2 b. 20 + ______ + 5 + 7 = 82
3 a. 70 + 10 + 5 + ______ = 93
3 b. ______ + 50 + 7 + 7 = 114
4 a. 50 + ______ + 9 + 7 = 136
4 b. 3 + 3 + 30 + ______ = 66
5 a. 7 + 5 + 10 + ______ = 52
5 b. 30 + 2 + ______ + 90 = 127
6 a. ______ + 6 + 9 + 80 = 105
6 b. 50 + 5 + ______ + 10 = 74
7 a. 30 + ______ + 3 + 4 = 57
7 b. 30 + 70 + ______ + 8 = 114
Page 2

Answer Key

1 a. 4    
1 b. 3    
2 a. 80    
2 b. 50    
3 a. 8    
3 b. 50    
4 a. 70    
4 b. 30    
5 a. 30    
5 b. 5    
6 a. 10    
6 b. 9    
7 a. 20    
7 b. 6    


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