Addition Worksheet

Solve.

1 a. 320 + 50 = ________
1 b. 540 + 50 = ________
2 a. 870 + 20 = ________
2 b. 150 + 20 = ________
3 a. 250 + 40 = ________
3 b. 400 + 50 = ________
4 a. 320 + 20 = ________
4 b. 180 + 10 = ________
5 a. 900 + 80 = ________
5 b. 430 + 10 = ________
6 a. 810 + 50 = ________
6 b. 600 + 20 = ________
7 a. 720 + 50 = ________
7 b. 150 + 10 = ________
8 a. 210 + 40 = ________
8 b. 210 + 10 = ________
9 a. 400 + 60 = ________
9 b. 570 + 10 = ________
10 a. 130 + 20 = ________
10 b. 550 + 0 = ________
Page 2

Answer Key

1 a. 370    
1 b. 590    
2 a. 890    
2 b. 170    
3 a. 290    
3 b. 450    
4 a. 340    
4 b. 190    
5 a. 980    
5 b. 440    
6 a. 860    
6 b. 620    
7 a. 770    
7 b. 160    
8 a. 250    
8 b. 220    
9 a. 460    
9 b. 580    
10 a. 150    
10 b. 550    


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