Addition Worksheet

Solve.

1 a. _________ + 500 = 900
1 b. 700 + _________ = 800
2 a. _________ + 1000 = 1700
2 b. 500 + _________ = 500
3 a. 0 + _________ = 900
3 b. _________ + 1000 = 1500
4 a. 700 + _________ = 1200
4 b. _________ + 200 = 500
5 a. 200 + _________ = 1000
5 b. _________ + 100 = 700
6 a. _________ + 0 = 600
6 b. 200 + _________ = 600
7 a. 900 + _________ = 1000
7 b. 300 + _________ = 1300
8 a. _________ + 100 = 1100
8 b. 1000 + _________ = 1000
9 a. 0 + _________ = 200
9 b. 700 + _________ = 1400
10 a. 900 + _________ = 1700
10 b. _________ + 300 = 800
Page 2

Answer Key

1 a. 400    
1 b. 100    
2 a. 700    
2 b. 0    
3 a. 900    
3 b. 500    
4 a. 500    
4 b. 300    
5 a. 800    
5 b. 600    
6 a. 600    
6 b. 400    
7 a. 100    
7 b. 1000    
8 a. 1000    
8 b. 0    
9 a. 200    
9 b. 700    
10 a. 800    
10 b. 500    


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