Addition Worksheet

Solve.

1 a. 2 + _________ + 700 = 792
 
1 b. 5 + 70 + _________ = 975
 
2 a. 50 + _________ + 300 = 350
 
2 b. 5 + 600 + _________ = 645
 
3 a. _________ + 40 + 5 = 845
 
3 b. 90 + 1 + _________ = 391
 
4 a. 1 + 700 + _________ = 791
 
4 b. 900 + _________ + 9 = 959
 
5 a. 9 + _________ + 100 = 169
 
5 b. 5 + 80 + _________ = 585
 
6 a. 8 + 10 + _________ = 818
 
6 b. 1 + _________ + 700 = 731
 
7 a. _________ + 400 + 80 = 480
 
7 b. 6 + _________ + 300 = 386
 
8 a. 80 + _________ + 100 = 185
 
8 b. _________ + 10 + 200 = 216
 
Page 2

Answer Key

1 a. 90    
1 b. 900    
2 a. 0    
2 b. 40    
3 a. 800    
3 b. 300    
4 a. 90    
4 b. 50    
5 a. 60    
5 b. 500    
6 a. 800    
6 b. 30    
7 a. 0    
7 b. 80    
8 a. 5    
8 b. 6    

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