Addition Worksheet

Solve.

1 a. 347 + _________ = 357
1 b. 358 + _________ = 388
2 a. _________ + 50 = 385
2 b. _________ + 40 = 397
3 a. 315 + _________ = 365
3 b. 762 + _________ = 762
4 a. 940 + _________ = 960
4 b. _________ + 50 = 354
5 a. _________ + 20 = 570
5 b. 379 + _________ = 389
6 a. _________ + 50 = 574
6 b. _________ + 30 = 488
7 a. 152 + ______ = 162
7 b. _________ + 50 = 773
8 a. 935 + _________ = 935
8 b. _________ + 80 = 288
Page 2

Answer Key

1 a. 10    
1 b. 30    
2 a. 335    
2 b. 357    
3 a. 50    
3 b. 0    
4 a. 20    
4 b. 304    
5 a. 550    
5 b. 10    
6 a. 524    
6 b. 458    
7 a. 10    
7 b. 723    
8 a. 0    
8 b. 208    


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