Addition Worksheet

Solve.

1 a. 400 + 10 + 3 = ________
1 b. 200 + 20 + 1 = ________
2 a. 8 + 30 + 500 = ________
2 b. 4 + 200 + 40 = ________
3 a. 600 + 70 + 8 = ________
3 b. 5 + 90 + 800 = ________
4 a. 0 + 800 + 80 = ________
4 b. 4 + 40 + 700 = ________
5 a. 6 + 20 + 400 = ________
5 b. 200 + 70 + 3 = ________
6 a. 9 + 400 + 40 = ________
6 b. 5 + 10 + 200 = ________
7 a. 0 + 60 + 100 = ________
7 b. 0 + 50 + 300 = ________
Page 2

Answer Key

1 a. 413    
1 b. 221    
2 a. 538    
2 b. 244    
3 a. 678    
3 b. 895    
4 a. 880    
4 b. 744    
5 a. 426    
5 b. 273    
6 a. 449    
6 b. 215    
7 a. 160    
7 b. 350    


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