Addition Worksheet

Solve.

1 a. 5 + 90 + _________ = 795
1 b. 500 + 60 + _________ = 566
2 a. _________ + 40 + 1 = 841
2 b. _________ + 40 + 1 = 341
3 a. 9 + _________ + 700 = 789
3 b. 3 + 10 + _________ = 213
4 a. 4 + _________ + 500 = 594
4 b. _________ + 700 + 30 = 736
5 a. 8 + _________ + 0 = 808
5 b. 9 + 90 + _________ = 499
6 a. 2 + _________ + 200 = 272
6 b. _________ + 0 + 200 = 207
7 a. 100 + _________ + 3 = 173
7 b. 7 + _________ + 60 = 567
8 a. 3 + 50 + _________ = 753
8 b. _________ + 60 + 900 = 964
9 a. _________ + 20 + 5 = 925
9 b. 7 + 40 + _________ = 147
10 a. 3 + _________ + 800 = 863
10 b. 700 + 80 + _________ = 784
Page 2

Answer Key

1 a. 700    
1 b. 6    
2 a. 800    
2 b. 300    
3 a. 80    
3 b. 200    
4 a. 90    
4 b. 6    
5 a. 800    
5 b. 400    
6 a. 70    
6 b. 7    
7 a. 70    
7 b. 500    
8 a. 700    
8 b. 4    
9 a. 900    
9 b. 100    
10 a. 60    
10 b. 4    


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