Addition Worksheet

Solve.

1 a. 300 + 800 = __________
 
1 b. 1000 + 700 = __________
 
2 a. 600 + 300 = __________
 
2 b. 100 + 700 = __________
 
3 a. 400 + 300 = __________
 
3 b. 1000 + 400 = __________
 
4 a. 900 + 700 = __________
 
4 b. 500 + 700 = __________
 
5 a. 1000 + 800 = __________
 
5 b. 500 + 200 = __________
 
6 a. 300 + 100 = __________
 
6 b. 100 + 100 = __________
 
7 a. 1000 + 1000 = __________
 
7 b. 600 + 500 = __________
 
8 a. 100 + 200 = __________
 
8 b. 900 + 400 = __________
 
9 a. 800 + 400 = __________
 
9 b. 900 + 100 = __________
 
10 a. 500 + 400 = __________
 
10 b. 700 + 500 = __________
 
Page 2

Answer Key

1 a. 1100    
1 b. 1700    
2 a. 900    
2 b. 800    
3 a. 700    
3 b. 1400    
4 a. 1600    
4 b. 1200    
5 a. 1800    
5 b. 700    
6 a. 400    
6 b. 200    
7 a. 2000    
7 b. 1100    
8 a. 300    
8 b. 1300    
9 a. 1200    
9 b. 1000    
10 a. 900    
10 b. 1200    


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