Addition Worksheet

Solve.

1 a. 220 + _________ = 270
1 b. 160 + ______ = 190
2 a. _________ + 70 = 780
2 b. 230 + _________ = 260
3 a. _________ + 30 = 660
3 b. _________ + 50 = 960
4 a. 550 + _________ = 560
4 b. 920 + _________ = 940
5 a. _________ + 0 = 950
5 b. 560 + _________ = 580
6 a. _________ + 40 = 860
6 b. 410 + _________ = 430
7 a. _________ + 50 = 580
7 b. 170 + ______ = 180
8 a. _________ + 10 = 920
8 b. _________ + 40 = 760
9 a. _________ + 0 = 370
9 b. _________ + 70 = 490
10 a. 110 + ______ = 160
10 b. _________ + 10 = 710
Page 2

Answer Key

1 a. 50    
1 b. 30    
2 a. 710    
2 b. 30    
3 a. 630    
3 b. 910    
4 a. 10    
4 b. 20    
5 a. 950    
5 b. 20    
6 a. 820    
6 b. 20    
7 a. 530    
7 b. 10    
8 a. 910    
8 b. 720    
9 a. 370    
9 b. 420    
10 a. 50    
10 b. 700    


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