Addition Worksheet

Solve.

1 a. 4 + 300 + 50 = ________
1 b. 3 + 80 + 800 = ________
2 a. 1 + 400 + 30 = ________
2 b. 9 + 50 + 100 = ________
3 a. 5 + 50 + 600 = ________
3 b. 800 + 40 + 7 = ________
4 a. 9 + 30 + 400 = ________
4 b. 4 + 90 + 600 = ________
5 a. 8 + 500 + 30 = ________
5 b. 70 + 9 + 800 = ________
6 a. 20 + 4 + 200 = ________
6 b. 80 + 5 + 700 = ________
7 a. 7 + 60 + 300 = ________
7 b. 5 + 70 + 100 = ________
8 a. 500 + 40 + 0 = ________
8 b. 900 + 90 + 7 = ________
9 a. 9 + 900 + 20 = ________
9 b. 70 + 2 + 500 = ________
10 a. 0 + 100 + 30 = ________
10 b. 9 + 20 + 100 = ________
Page 2

Answer Key

1 a. 354    
1 b. 883    
2 a. 431    
2 b. 159    
3 a. 655    
3 b. 847    
4 a. 439    
4 b. 694    
5 a. 538    
5 b. 879    
6 a. 224    
6 b. 785    
7 a. 367    
7 b. 175    
8 a. 540    
8 b. 997    
9 a. 929    
9 b. 572    
10 a. 130    
10 b. 129    


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