Addition Worksheet

Solve.

1 a. _________ + 449 = 500
 
 
1 b. 94 + _________ = 400
 
 
2 a. _________ + 10 = 300
 
 
2 b. 883 + _________ = 1000
 
 
3 a. _________ + 740 = 800
 
 
3 b. 164 + _________ = 300
 
 
4 a. _________ + 618 = 800
 
 
4 b. _________ + 489 = 600
 
 
5 a. _________ + 838 = 1000
 
 
5 b. 413 + _________ = 500
 
 
6 a. _________ + 659 = 700
 
 
6 b. 513 + _________ = 700
 
 
7 a. 39 + _________ = 300
 
 
7 b. 572 + _________ = 800
 
 
8 a. _________ + 38 = 400
 
 
8 b. 335 + _________ = 900
 
 
9 a. 531 + _________ = 900
 
 
9 b. _________ + 207 = 800
 
 
10 a. 742 + _________ = 1000
 
 
10 b. _________ + 327 = 900
 
 
Page 2

Answer Key

1 a. 51    
1 b. 306    
2 a. 290    
2 b. 117    
3 a. 60    
3 b. 136    
4 a. 182    
4 b. 111    
5 a. 162    
5 b. 87    
6 a. 41    
6 b. 187    
7 a. 261    
7 b. 228    
8 a. 362    
8 b. 565    
9 a. 369    
9 b. 593    
10 a. 258    
10 b. 573    


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