Addition Worksheet

Solve.

1 a. 70 + _________ = 486
 
1 b. _________ + 357 = 365
 
2 a. _________ + 30 = 454
 
2 b. ______ + 10 = 118
 
3 a. 206 + _________ = 806
 
3 b. 5 + _________ = 806
 
4 a. 5 + _________ = 643
 
4 b. _________ + 206 = 296
 
5 a. 177 + _________ = 577
 
5 b. 40 + _________ = 675
 
6 a. _________ + 186 = 256
 
6 b. 590 + _________ = 670
 
7 a. 235 + _________ = 237
 
7 b. 70 + _________ = 379
 
8 a. 90 + _________ = 819
 
8 b. 80 + _________ = 229
 
9 a. _________ + 778 = 780
 
9 b. 9 + _________ = 364
 
10 a. _________ + 4 = 625
 
10 b. 579 + _________ = 669
 
Page 2

Answer Key

1 a. 416    
1 b. 8    
2 a. 424    
2 b. 108    
3 a. 600    
3 b. 801    
4 a. 638    
4 b. 90    
5 a. 400    
5 b. 635    
6 a. 70    
6 b. 80    
7 a. 2    
7 b. 309    
8 a. 729    
8 b. 149    
9 a. 2    
9 b. 355    
10 a. 621    
10 b. 90    


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