Addition Worksheet

Solve.

1 a. _________ + 7 = 688
1 b. 263 + _________ = 268
2 a. 679 + _________ = 687
2 b. _________ + 649 = 656
3 a. _________ + 852 = 861
3 b. 107 + ______ = 108
4 a. ______ + 135 = 141
4 b. _________ + 939 = 944
5 a. _________ + 545 = 554
5 b. _________ + 6 = 261
6 a. _________ + 551 = 559
6 b. 1 + _________ = 766
7 a. _________ + 3 = 495
7 b. _________ + 4 = 477
8 a. 727 + _________ = 733
8 b. _________ + 3 = 927
9 a. _________ + 448 = 456
9 b. _________ + 202 = 203
10 a. 217 + _________ = 221
10 b. 3 + _________ = 744
Page 2

Answer Key

1 a. 681    
1 b. 5    
2 a. 8    
2 b. 7    
3 a. 9    
3 b. 1    
4 a. 6    
4 b. 5    
5 a. 9    
5 b. 255    
6 a. 8    
6 b. 765    
7 a. 492    
7 b. 473    
8 a. 6    
8 b. 924    
9 a. 8    
9 b. 1    
10 a. 4    
10 b. 741    


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