Addition Worksheet

Solve.

1 a. 8 + _________ + 800 = 808
1 b. 5 + _________ + 700 = 725
2 a. _________ + 0 + 800 = 809
2 b. 9 + _________ + 20 = 529
3 a. 9 + 10 + _________ = 819
3 b. 1 + 50 + _________ = 351
4 a. 100 + 70 + _________ = 176
4 b. 8 + _________ + 500 = 588
5 a. 0 + 50 + _________ = 850
5 b. 5 + _________ + 30 = 135
6 a. _________ + 200 + 30 = 239
6 b. 2 + 60 + _________ = 262
7 a. 6 + _________ + 700 = 716
7 b. 9 + 50 + ______ = 159
Page 2

Answer Key

1 a. 0    
1 b. 20    
2 a. 9    
2 b. 500    
3 a. 800    
3 b. 300    
4 a. 6    
4 b. 80    
5 a. 800    
5 b. 100    
6 a. 9    
6 b. 200    
7 a. 10    
7 b. 100    


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