Addition Worksheet

Solve.

1 a. _________ + 200 = 378
 
1 b. ______ + 178 = 187
 
2 a. _________ + 383 = 393
 
2 b. 100 + _________ = 654
 
3 a. _________ + 574 = 584
 
3 b. _________ + 469 = 529
 
4 a. 80 + _________ = 850
 
4 b. _________ + 30 = 887
 
5 a. 8 + _________ = 498
 
5 b. 6 + _________ = 489
 
6 a. _________ + 810 = 870
 
6 b. 857 + _________ = 860
 
7 a. 10 + _________ = 327
 
7 b. _________ + 328 = 828
 
8 a. 143 + _________ = 233
 
8 b. _________ + 40 = 651
 
9 a. 400 + _________ = 504
 
9 b. _________ + 454 = 462
 
10 a. _________ + 30 = 295
 
10 b. 20 + _________ = 368
 
Page 2

Answer Key

1 a. 178    
1 b. 9    
2 a. 10    
2 b. 554    
3 a. 10    
3 b. 60    
4 a. 770    
4 b. 857    
5 a. 490    
5 b. 483    
6 a. 60    
6 b. 3    
7 a. 317    
7 b. 500    
8 a. 90    
8 b. 611    
9 a. 104    
9 b. 8    
10 a. 265    
10 b. 348    


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