Addition Worksheet

Solve.

1 a. 128 + ______ = 158
1 b. ______ + 60 = 191
2 a. 337 + _________ = 387
2 b. 136 + ______ = 156
3 a. _________ + 10 = 388
3 b. _________ + 20 = 268
4 a. 622 + _________ = 632
4 b. _________ + 50 = 995
5 a. 444 + _________ = 484
5 b. 233 + _________ = 253
6 a. 561 + _________ = 591
6 b. _________ + 70 = 894
7 a. _________ + 50 = 695
7 b. 109 + ______ = 169
8 a. _________ + 20 = 389
8 b. _________ + 20 = 972
9 a. 737 + _________ = 767
9 b. 207 + _________ = 267
10 a. _________ + 60 = 890
10 b. _________ + 40 = 354
Page 2

Answer Key

1 a. 30    
1 b. 131    
2 a. 50    
2 b. 20    
3 a. 378    
3 b. 248    
4 a. 10    
4 b. 945    
5 a. 40    
5 b. 20    
6 a. 30    
6 b. 824    
7 a. 645    
7 b. 60    
8 a. 369    
8 b. 952    
9 a. 30    
9 b. 60    
10 a. 830    
10 b. 314    

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