Addition Worksheet

Solve.

1 a. 600 + _________ = 640
1 b. 200 + _________ = 230
2 a. _________ + 50 = 890
2 b. _________ + 50 = 260
3 a. _________ + 50 = 880
3 b. 620 + _________ = 630
4 a. 650 + _________ = 690
4 b. _________ + 40 = 990
5 a. 700 + _________ = 740
5 b. _________ + 60 = 390
6 a. 690 + _________ = 690
6 b. 300 + _________ = 360
7 a. _________ + 10 = 360
7 b. 940 + _________ = 980
8 a. 360 + _________ = 370
8 b. 630 + _________ = 690
9 a. 450 + _________ = 480
9 b. _________ + 0 = 210
10 a. 630 + _________ = 680
10 b. 310 + _________ = 380
Page 2

Answer Key

1 a. 40    
1 b. 30    
2 a. 840    
2 b. 210    
3 a. 830    
3 b. 10    
4 a. 40    
4 b. 950    
5 a. 40    
5 b. 330    
6 a. 0    
6 b. 60    
7 a. 350    
7 b. 40    
8 a. 10    
8 b. 60    
9 a. 30    
9 b. 210    
10 a. 50    
10 b. 70    


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