Addition Worksheet

Solve.

1 a. 5 + 90 + _________ = 895
1 b. _________ + 30 + 700 = 739
2 a. 600 + 80 + _________ = 682
2 b. 8 + 60 + ______ = 168
3 a. 9 + _________ + 200 = 279
3 b. 5 + 900 + _________ = 995
4 a. 9 + _________ + 300 = 389
4 b. _________ + 40 + 600 = 646
5 a. 600 + _________ + 2 = 632
5 b. 100 + ______ + 3 = 103
6 a. _________ + 40 + 8 = 548
6 b. 0 + 300 + _________ = 310
7 a. 300 + 90 + _________ = 390
7 b. 80 + 8 + _________ = 788
8 a. 9 + 80 + _________ = 289
8 b. _________ + 800 + 50 = 851
9 a. 3 + _________ + 0 = 903
9 b. 400 + _________ + 1 = 401
10 a. 5 + _________ + 70 = 375
10 b. 40 + _________ + 400 = 447
Page 2

Answer Key

1 a. 800    
1 b. 9    
2 a. 2    
2 b. 100    
3 a. 70    
3 b. 90    
4 a. 80    
4 b. 6    
5 a. 30    
5 b. 0    
6 a. 500    
6 b. 10    
7 a. 0    
7 b. 700    
8 a. 200    
8 b. 1    
9 a. 900    
9 b. 0    
10 a. 300    
10 b. 7    


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