Addition Worksheet

Solve.

1 a. 209 + 40 = ________
1 b. 114 + 40 = ________
2 a. 303 + 50 = ________
2 b. 226 + 40 = ________
3 a. 377 + 10 = ________
3 b. 573 + 10 = ________
4 a. 777 + 0 = ________
4 b. 321 + 70 = ________
5 a. 231 + 30 = ________
5 b. 435 + 30 = ________
6 a. 179 + 10 = ________
6 b. 404 + 20 = ________
7 a. 845 + 40 = ________
7 b. 452 + 10 = ________
8 a. 142 + 50 = ________
8 b. 102 + 70 = ________
9 a. 345 + 40 = ________
9 b. 853 + 20 = ________
10 a. 148 + 30 = ________
10 b. 257 + 40 = ________
Page 2

Answer Key

1 a. 249    
1 b. 154    
2 a. 353    
2 b. 266    
3 a. 387    
3 b. 583    
4 a. 777    
4 b. 391    
5 a. 261    
5 b. 465    
6 a. 189    
6 b. 424    
7 a. 885    
7 b. 462    
8 a. 192    
8 b. 172    
9 a. 385    
9 b. 873    
10 a. 178    
10 b. 297    


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