Addition Worksheet

Solve.

1 a. _________ + 325 = 700
1 b. _________ + 345 = 400
2 a. _________ + 260 = 400
2 b. 360 + _________ = 700
3 a. _________ + 878 = 1000
3 b. _________ + 311 = 400
4 a. _________ + 57 = 300
4 b. 291 + _________ = 400
5 a. 64 + _________ = 300
5 b. 643 + _________ = 900
6 a. 35 + _________ = 900
6 b. _________ + 331 = 700
7 a. 856 + _________ = 900
7 b. _________ + 632 = 800
8 a. 806 + _________ = 900
8 b. 139 + _________ = 800
Page 2

Answer Key

1 a. 375    
1 b. 55    
2 a. 140    
2 b. 340    
3 a. 122    
3 b. 89    
4 a. 243    
4 b. 109    
5 a. 236    
5 b. 257    
6 a. 865    
6 b. 369    
7 a. 44    
7 b. 168    
8 a. 94    
8 b. 661    


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