Addition Worksheet

Solve.

1 a. ______ + 50 = 180
1 b. ______ + 30 = 150
2 a. _________ + 10 = 390
2 b. _________ + 0 = 370
3 a. _________ + 30 = 380
3 b. _________ + 0 = 750
4 a. 450 + _________ = 450
4 b. 900 + _________ = 980
5 a. 640 + _________ = 660
5 b. _________ + 50 = 560
6 a. 830 + _________ = 850
6 b. _________ + 70 = 890
7 a. _________ + 20 = 370
7 b. _________ + 60 = 580
8 a. _________ + 40 = 850
8 b. 810 + _________ = 860
9 a. 310 + _________ = 360
9 b. 110 + ______ = 190
10 a. _________ + 0 = 950
10 b. 430 + _________ = 480
Page 2

Answer Key

1 a. 130    
1 b. 120    
2 a. 380    
2 b. 370    
3 a. 350    
3 b. 750    
4 a. 0    
4 b. 80    
5 a. 20    
5 b. 510    
6 a. 20    
6 b. 820    
7 a. 350    
7 b. 520    
8 a. 810    
8 b. 50    
9 a. 50    
9 b. 80    
10 a. 950    
10 b. 50    


Copying permission: You are free to copy this worksheet to any number of students for their mathematics work. Do not distribute on websites, books, or any such material without permission. Copyright www.HomeschoolMath.net