Addition Worksheet

Solve.

1 a. 810 + 60 = ________
1 b. 450 + 20 = ________
2 a. 640 + 10 = ________
2 b. 510 + 20 = ________
3 a. 340 + 0 = ________
3 b. 610 + 50 = ________
4 a. 640 + 50 = ________
4 b. 360 + 20 = ________
5 a. 430 + 60 = ________
5 b. 940 + 0 = ________
6 a. 130 + 10 = ________
6 b. 410 + 60 = ________
7 a. 290 + 0 = ________
7 b. 370 + 0 = ________
8 a. 900 + 50 = ________
8 b. 600 + 30 = ________
9 a. 370 + 10 = ________
9 b. 440 + 30 = ________
10 a. 230 + 50 = ________
10 b. 630 + 60 = ________
Page 2

Answer Key

1 a. 870    
1 b. 470    
2 a. 650    
2 b. 530    
3 a. 340    
3 b. 660    
4 a. 690    
4 b. 380    
5 a. 490    
5 b. 940    
6 a. 140    
6 b. 470    
7 a. 290    
7 b. 370    
8 a. 950    
8 b. 630    
9 a. 380    
9 b. 470    
10 a. 280    
10 b. 690    


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