Addition Worksheet

Solve.

1 a. 350 + 40 = ________
1 b. 910 + 50 = ________
2 a. 710 + 60 = ________
2 b. 630 + 30 = ________
3 a. 150 + 0 = ________
3 b. 110 + 70 = ________
4 a. 170 + 20 = ________
4 b. 470 + 0 = ________
5 a. 850 + 40 = ________
5 b. 800 + 30 = ________
6 a. 330 + 30 = ________
6 b. 300 + 60 = ________
7 a. 310 + 10 = ________
7 b. 660 + 10 = ________
8 a. 600 + 10 = ________
8 b. 160 + 10 = ________
9 a. 870 + 20 = ________
9 b. 620 + 30 = ________
10 a. 330 + 40 = ________
10 b. 400 + 10 = ________
Page 2

Answer Key

1 a. 390    
1 b. 960    
2 a. 770    
2 b. 660    
3 a. 150    
3 b. 180    
4 a. 190    
4 b. 470    
5 a. 890    
5 b. 830    
6 a. 360    
6 b. 360    
7 a. 320    
7 b. 670    
8 a. 610    
8 b. 170    
9 a. 890    
9 b. 650    
10 a. 370    
10 b. 410    


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