Addition Worksheet

Solve.

1 a. _________ + 1 = 799
1 b. _________ + 921 = 922
2 a. 345 + _________ = 350
2 b. _________ + 8 = 648
3 a. _________ + 771 = 777
3 b. _________ + 2 = 410
4 a. _________ + 563 = 571
4 b. _________ + 650 = 652
5 a. 830 + _________ = 837
5 b. _________ + 8 = 612
6 a. 6 + ______ = 173
6 b. _________ + 922 = 923
7 a. ______ + 157 = 160
7 b. _________ + 8 = 834
8 a. _________ + 788 = 791
8 b. _________ + 686 = 693
9 a. 518 + _________ = 520
9 b. ______ + 3 = 134
10 a. _________ + 957 = 964
10 b. 670 + _________ = 675
Page 2

Answer Key

1 a. 798    
1 b. 1    
2 a. 5    
2 b. 640    
3 a. 6    
3 b. 408    
4 a. 8    
4 b. 2    
5 a. 7    
5 b. 604    
6 a. 167    
6 b. 1    
7 a. 3    
7 b. 826    
8 a. 3    
8 b. 7    
9 a. 2    
9 b. 131    
10 a. 7    
10 b. 5    


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