Addition Worksheet

Solve.

1 a. 731 + _________ = 781
1 b. 370 + _________ = 390
2 a. 707 + _________ = 717
2 b. ______ + 20 = 187
3 a. _________ + 10 = 776
3 b. ______ + 30 = 188
4 a. _________ + 0 = 925
4 b. ______ + 60 = 163
5 a. 442 + _________ = 492
5 b. 365 + _________ = 385
6 a. _________ + 0 = 650
6 b. ______ + 10 = 188
7 a. _________ + 0 = 458
7 b. 330 + _________ = 330
8 a. _________ + 40 = 865
8 b. _________ + 10 = 299
9 a. 249 + _________ = 299
9 b. 116 + ______ = 176
10 a. _________ + 50 = 661
10 b. 202 + _________ = 292
Page 2

Answer Key

1 a. 50    
1 b. 20    
2 a. 10    
2 b. 167    
3 a. 766    
3 b. 158    
4 a. 925    
4 b. 103    
5 a. 50    
5 b. 20    
6 a. 650    
6 b. 178    
7 a. 458    
7 b. 0    
8 a. 825    
8 b. 289    
9 a. 50    
9 b. 60    
10 a. 611    
10 b. 90    

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