Addition Worksheet

Solve.

1 a. 570 + 10 = ________
1 b. 440 + 40 = ________
2 a. 310 + 50 = ________
2 b. 900 + 10 = ________
3 a. 530 + 40 = ________
3 b. 920 + 60 = ________
4 a. 700 + 30 = ________
4 b. 510 + 30 = ________
5 a. 500 + 40 = ________
5 b. 520 + 30 = ________
6 a. 800 + 50 = ________
6 b. 850 + 40 = ________
7 a. 950 + 0 = ________
7 b. 270 + 20 = ________
8 a. 370 + 10 = ________
8 b. 610 + 50 = ________
9 a. 110 + 70 = ________
9 b. 120 + 40 = ________
10 a. 230 + 30 = ________
10 b. 730 + 50 = ________
Page 2

Answer Key

1 a. 580    
1 b. 480    
2 a. 360    
2 b. 910    
3 a. 570    
3 b. 980    
4 a. 730    
4 b. 540    
5 a. 540    
5 b. 550    
6 a. 850    
6 b. 890    
7 a. 950    
7 b. 290    
8 a. 380    
8 b. 660    
9 a. 180    
9 b. 160    
10 a. 260    
10 b. 780    


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