Addition Worksheet

Solve.

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

Answer Key

1 a. 793    
1 b. 457    
2 a. 944    
2 b. 835    
3 a. 776    
3 b. 850    
4 a. 249    
4 b. 951    
5 a. 908    
5 b. 648    
6 a. 426    
6 b. 629    
7 a. 103    
7 b. 784    


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