Addition Worksheet

Solve.

1 a. 320 + 40 = ________
1 b. 330 + 10 = ________
2 a. 730 + 40 = ________
2 b. 200 + 50 = ________
3 a. 640 + 50 = ________
3 b. 310 + 60 = ________
4 a. 350 + 40 = ________
4 b. 260 + 0 = ________
5 a. 310 + 40 = ________
5 b. 830 + 40 = ________
6 a. 400 + 40 = ________
6 b. 520 + 0 = ________
7 a. 340 + 40 = ________
7 b. 310 + 50 = ________
8 a. 720 + 60 = ________
8 b. 660 + 30 = ________
9 a. 840 + 40 = ________
9 b. 400 + 30 = ________
10 a. 530 + 50 = ________
10 b. 870 + 10 = ________
Page 2

Answer Key

1 a. 360    
1 b. 340    
2 a. 770    
2 b. 250    
3 a. 690    
3 b. 370    
4 a. 390    
4 b. 260    
5 a. 350    
5 b. 870    
6 a. 440    
6 b. 520    
7 a. 380    
7 b. 360    
8 a. 780    
8 b. 690    
9 a. 880    
9 b. 430    
10 a. 580    
10 b. 880    


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