Addition Worksheet

Solve.

1 a. 20 + 70 = ______
1 b. 10 + 30 = ______
2 a. 70 + 30 = ______
2 b. 80 + 20 = ______
3 a. 10 + 70 = ______
3 b. 10 + 90 = ______
4 a. 20 + 20 = ______
4 b. 30 + 40 = ______
5 a. 60 + 90 = ______
5 b. 50 + 60 = ______
6 a. 40 + 40 = ______
6 b. 40 + 20 = ______
7 a. 90 + 40 = ______
7 b. 60 + 80 = ______
8 a. 60 + 10 = ______
8 b. 40 + 10 = ______
Page 2

Answer Key

1 a. 90    
1 b. 40    
2 a. 100    
2 b. 100    
3 a. 80    
3 b. 100    
4 a. 40    
4 b. 70    
5 a. 150    
5 b. 110    
6 a. 80    
6 b. 60    
7 a. 130    
7 b. 140    
8 a. 70    
8 b. 50    


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