Addition Worksheet

Solve.

1 a. 20 + 60 + 80 = ______
1 b. 30 + 70 + 20 = ______
2 a. 40 + 80 + 40 = ______
2 b. 10 + 50 + 50 = ______
3 a. 90 + 50 + 70 = ______
3 b. 30 + 20 + 60 = ______
4 a. 40 + 90 + 70 = ______
4 b. 60 + 50 + 80 = ______
5 a. 90 + 10 + 60 = ______
5 b. 10 + 60 + 90 = ______
6 a. 10 + 40 + 90 = ______
6 b. 80 + 30 + 40 = ______
7 a. 10 + 20 + 10 = ______
7 b. 20 + 40 + 20 = ______
8 a. 60 + 40 + 20 = ______
8 b. 80 + 80 + 90 = ______
9 a. 60 + 40 + 80 = ______
9 b. 40 + 60 + 90 = ______
10 a. 60 + 10 + 20 = ______
10 b. 50 + 50 + 50 = ______
Page 2

Answer Key

1 a. 160    
1 b. 120    
2 a. 160    
2 b. 110    
3 a. 210    
3 b. 110    
4 a. 200    
4 b. 190    
5 a. 160    
5 b. 160    
6 a. 140    
6 b. 150    
7 a. 40    
7 b. 80    
8 a. 120    
8 b. 250    
9 a. 180    
9 b. 190    
10 a. 90    
10 b. 150    


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