Addition Worksheet

Solve.

1 a. _________ + 30 = 345
1 b. _________ + 40 = 245
2 a. _________ + 40 = 752
2 b. _________ + 60 = 965
3 a. 302 + _________ = 342
3 b. _________ + 10 = 416
4 a. _________ + 50 = 376
4 b. 302 + _________ = 352
5 a. 532 + _________ = 562
5 b. _________ + 20 = 548
6 a. 515 + _________ = 575
6 b. ______ + 30 = 175
7 a. _________ + 50 = 787
7 b. ______ + 40 = 154
8 a. _________ + 60 = 767
8 b. 309 + _________ = 359
9 a. _________ + 30 = 899
9 b. 101 + ______ = 171
10 a. 125 + ______ = 165
10 b. 516 + _________ = 576
Page 2

Answer Key

1 a. 315    
1 b. 205    
2 a. 712    
2 b. 905    
3 a. 40    
3 b. 406    
4 a. 326    
4 b. 50    
5 a. 30    
5 b. 528    
6 a. 60    
6 b. 145    
7 a. 737    
7 b. 114    
8 a. 707    
8 b. 50    
9 a. 869    
9 b. 70    
10 a. 40    
10 b. 60    

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