Addition Worksheet

Solve.

1 a. 900 + _________ = 1400
1 b. _________ + 200 = 1100
2 a. _________ + 400 = 1300
2 b. 100 + _________ = 800
3 a. _________ + 200 = 800
3 b. _________ + 800 = 1700
4 a. 700 + _________ = 1200
4 b. _________ + 500 = 1100
5 a. 500 + _________ = 1000
5 b. 0 + _________ = 400
6 a. 600 + _________ = 700
6 b. 0 + _________ = 600
7 a. 400 + _________ = 900
7 b. 1000 + _________ = 1900
8 a. _________ + 600 = 1400
8 b. 900 + _________ = 1200
9 a. 500 + _________ = 800
9 b. _________ + 200 = 700
10 a. 800 + _________ = 1500
10 b. 800 + _________ = 1600
Page 2

Answer Key

1 a. 500    
1 b. 900    
2 a. 900    
2 b. 700    
3 a. 600    
3 b. 900    
4 a. 500    
4 b. 600    
5 a. 500    
5 b. 400    
6 a. 100    
6 b. 600    
7 a. 500    
7 b. 900    
8 a. 800    
8 b. 300    
9 a. 300    
9 b. 500    
10 a. 700    
10 b. 800    


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