Addition Worksheet

Solve.

1 a. 400 + 300 + 100 = ________
 
1 b. 300 + 500 + 100 = ________
 
2 a. 600 + 300 + 100 = ________
 
2 b. 700 + 300 + 400 = ________
 
3 a. 600 + 600 + 400 = ________
 
3 b. 700 + 500 + 300 = ________
 
4 a. 400 + 800 + 500 = ________
 
4 b. 900 + 900 + 400 = ________
 
5 a. 500 + 300 + 600 = ________
 
5 b. 100 + 700 + 300 = ________
 
6 a. 400 + 600 + 600 = ________
 
6 b. 900 + 200 + 900 = ________
 
7 a. 100 + 300 + 900 = ________
 
7 b. 900 + 100 + 200 = ________
 
8 a. 400 + 400 + 300 = ________
 
8 b. 700 + 200 + 200 = ________
 
Page 2

Answer Key

1 a. 800    
1 b. 900    
2 a. 1000    
2 b. 1400    
3 a. 1600    
3 b. 1500    
4 a. 1700    
4 b. 2200    
5 a. 1400    
5 b. 1100    
6 a. 1600    
6 b. 2000    
7 a. 1300    
7 b. 1200    
8 a. 1100    
8 b. 1100    


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