Addition Worksheet

Solve.

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

Answer Key

1 a. 651    
1 b. 107    
2 a. 659    
2 b. 898    
3 a. 561    
3 b. 777    
4 a. 984    
4 b. 993    
5 a. 707    
5 b. 807    
6 a. 662    
6 b. 246    
7 a. 762    
7 b. 500    
8 a. 626    
8 b. 532    
9 a. 460    
9 b. 893    
10 a. 911    
10 b. 990    


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