Addition Worksheet

Solve.

1 a. 8 + _________ + 90 = 698
1 b. 1 + 200 + _________ = 211
2 a. 3 + 80 + _________ = 483
2 b. 2 + 80 + _________ = 682
3 a. 1 + _________ + 90 = 491
3 b. _________ + 70 + 900 = 973
4 a. _________ + 30 + 400 = 433
4 b. _________ + 90 + 300 = 396
5 a. _________ + 70 + 9 = 279
5 b. 5 + 200 + _________ = 265
6 a. 70 + 9 + _________ = 579
6 b. 0 + 0 + ______ = 100
7 a. 9 + 300 + _________ = 339
7 b. 60 + 0 + _________ = 960
Page 2

Answer Key

1 a. 600    
1 b. 10    
2 a. 400    
2 b. 600    
3 a. 400    
3 b. 3    
4 a. 3    
4 b. 6    
5 a. 200    
5 b. 60    
6 a. 500    
6 b. 100    
7 a. 30    
7 b. 900    


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