Addition Worksheet

Solve.

1 a. _________ + 10 = 613
1 b. ______ + 70 = 171
2 a. 309 + _________ = 379
2 b. 321 + _________ = 341
3 a. _________ + 0 = 366
3 b. ______ + 30 = 176
4 a. 238 + _________ = 268
4 b. _________ + 60 = 468
5 a. 472 + _________ = 492
5 b. 631 + _________ = 691
6 a. 753 + _________ = 763
6 b. 634 + _________ = 674
7 a. 337 + _________ = 387
7 b. ______ + 50 = 178
8 a. 132 + ______ = 142
8 b. _________ + 10 = 390
9 a. 532 + _________ = 552
9 b. ______ + 30 = 142
10 a. 233 + _________ = 233
10 b. _________ + 50 = 362
Page 2

Answer Key

1 a. 603    
1 b. 101    
2 a. 70    
2 b. 20    
3 a. 366    
3 b. 146    
4 a. 30    
4 b. 408    
5 a. 20    
5 b. 60    
6 a. 10    
6 b. 40    
7 a. 50    
7 b. 128    
8 a. 10    
8 b. 380    
9 a. 20    
9 b. 112    
10 a. 0    
10 b. 312    


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