Addition Worksheet

Solve.

1 a. 640 + 40 = ________
1 b. 410 + 40 = ________
2 a. 210 + 80 = ________
2 b. 810 + 60 = ________
3 a. 770 + 10 = ________
3 b. 630 + 30 = ________
4 a. 140 + 50 = ________
4 b. 550 + 30 = ________
5 a. 340 + 40 = ________
5 b. 160 + 10 = ________
6 a. 100 + 70 = ________
6 b. 640 + 50 = ________
7 a. 340 + 10 = ________
7 b. 560 + 10 = ________
8 a. 730 + 30 = ________
8 b. 550 + 20 = ________
9 a. 850 + 40 = ________
9 b. 640 + 20 = ________
10 a. 440 + 50 = ________
10 b. 730 + 40 = ________
Page 2

Answer Key

1 a. 680    
1 b. 450    
2 a. 290    
2 b. 870    
3 a. 780    
3 b. 660    
4 a. 190    
4 b. 580    
5 a. 380    
5 b. 170    
6 a. 170    
6 b. 690    
7 a. 350    
7 b. 570    
8 a. 760    
8 b. 570    
9 a. 890    
9 b. 660    
10 a. 490    
10 b. 770    


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