Addition Worksheet

Solve.

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

Answer Key

1 a. 419    
1 b. 249    
2 a. 589    
2 b. 927    
3 a. 832    
3 b. 412    
4 a. 394    
4 b. 866    
5 a. 290    
5 b. 672    
6 a. 927    
6 b. 290    
7 a. 429    
7 b. 905    
8 a. 283    
8 b. 504    
9 a. 404    
9 b. 897    
10 a. 482    
10 b. 309    

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