Addition Worksheet

Solve.

1 a. 468 + _________ = 478
1 b. _________ + 30 = 488
2 a. ______ + 30 = 176
2 b. _________ + 20 = 267
3 a. 205 + _________ = 265
3 b. 831 + _________ = 881
4 a. 261 + _________ = 271
4 b. 142 + ______ = 172
5 a. _________ + 50 = 677
5 b. _________ + 30 = 252
6 a. _________ + 80 = 381
6 b. 226 + _________ = 236
7 a. ______ + 60 = 169
7 b. 408 + _________ = 448
8 a. _________ + 0 = 864
8 b. ______ + 50 = 182
9 a. ______ + 60 = 186
9 b. _________ + 30 = 668
10 a. 440 + _________ = 490
10 b. _________ + 30 = 357
Page 2

Answer Key

1 a. 10    
1 b. 458    
2 a. 146    
2 b. 247    
3 a. 60    
3 b. 50    
4 a. 10    
4 b. 30    
5 a. 627    
5 b. 222    
6 a. 301    
6 b. 10    
7 a. 109    
7 b. 40    
8 a. 864    
8 b. 132    
9 a. 126    
9 b. 638    
10 a. 50    
10 b. 327    


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