Addition Worksheet

Solve.

1 a. 4 + _________ = 335
1 b. 285 + _________ = 289
2 a. _________ + 890 = 898
2 b. 751 + _________ = 757
3 a. 686 + _________ = 690
3 b. 457 + _________ = 466
4 a. _________ + 2 = 436
4 b. ______ + 168 = 176
5 a. _________ + 9 = 994
5 b. 1 + _________ = 781
6 a. _________ + 320 = 321
6 b. 6 + _________ = 455
7 a. 5 + _________ = 817
7 b. _________ + 833 = 842
8 a. 537 + _________ = 539
8 b. 458 + _________ = 463
9 a. _________ + 409 = 413
9 b. 4 + ______ = 114
10 a. 833 + _________ = 835
10 b. _________ + 3 = 240
Page 2

Answer Key

1 a. 331    
1 b. 4    
2 a. 8    
2 b. 6    
3 a. 4    
3 b. 9    
4 a. 434    
4 b. 8    
5 a. 985    
5 b. 780    
6 a. 1    
6 b. 449    
7 a. 812    
7 b. 9    
8 a. 2    
8 b. 5    
9 a. 4    
9 b. 110    
10 a. 2    
10 b. 237    


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