Addition Worksheet

Solve.

1 a. 660 + 20 = ________
1 b. 210 + 30 = ________
2 a. 630 + 40 = ________
2 b. 220 + 60 = ________
3 a. 720 + 60 = ________
3 b. 420 + 50 = ________
4 a. 340 + 20 = ________
4 b. 150 + 40 = ________
5 a. 680 + 10 = ________
5 b. 650 + 20 = ________
6 a. 630 + 10 = ________
6 b. 330 + 10 = ________
7 a. 500 + 80 = ________
7 b. 550 + 30 = ________
8 a. 730 + 50 = ________
8 b. 310 + 40 = ________
9 a. 730 + 40 = ________
9 b. 940 + 50 = ________
10 a. 920 + 50 = ________
10 b. 600 + 30 = ________
Page 2

Answer Key

1 a. 680    
1 b. 240    
2 a. 670    
2 b. 280    
3 a. 780    
3 b. 470    
4 a. 360    
4 b. 190    
5 a. 690    
5 b. 670    
6 a. 640    
6 b. 340    
7 a. 580    
7 b. 580    
8 a. 780    
8 b. 350    
9 a. 770    
9 b. 990    
10 a. 970    
10 b. 630    


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