Addition Worksheet

Solve.

1 a. 200 + _________ = 220
1 b. _________ + 10 = 710
2 a. _________ + 50 = 580
2 b. 740 + _________ = 770
3 a. _________ + 40 = 470
3 b. _________ + 50 = 870
4 a. _________ + 30 = 330
4 b. 400 + _________ = 430
5 a. _________ + 0 = 880
5 b. ______ + 10 = 150
6 a. 830 + _________ = 840
6 b. _________ + 40 = 270
7 a. 870 + _________ = 880
7 b. ______ + 0 = 150
8 a. _________ + 70 = 980
8 b. _________ + 50 = 680
9 a. _________ + 20 = 970
9 b. _________ + 40 = 740
10 a. 440 + _________ = 450
10 b. 140 + ______ = 150
Page 2

Answer Key

1 a. 20    
1 b. 700    
2 a. 530    
2 b. 30    
3 a. 430    
3 b. 820    
4 a. 300    
4 b. 30    
5 a. 880    
5 b. 140    
6 a. 10    
6 b. 230    
7 a. 10    
7 b. 150    
8 a. 910    
8 b. 630    
9 a. 950    
9 b. 700    
10 a. 10    
10 b. 10    


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