Addition Worksheet

Solve.

1 a. 10 + ______ + 9 + 8 = 37
1 b. 50 + 40 + 9 + ______ = 108
2 a. 20 + 4 + ______ + 30 = 62
2 b. 10 + 60 + 3 + ______ = 76
3 a. 30 + 80 + ______ + 2 = 117
3 b. 30 + ______ + 2 + 20 = 54
4 a. 3 + 7 + ______ + 50 = 90
4 b. 4 + 40 + ______ + 20 = 72
5 a. 40 + 8 + ______ + 30 = 82
5 b. ______ + 90 + 3 + 4 = 107
6 a. 70 + 40 + 8 + ______ = 123
6 b. 20 + ______ + 9 + 2 = 121
7 a. 20 + ______ + 6 + 50 = 79
7 b. ______ + 50 + 6 + 50 = 115
Page 2

Answer Key

1 a. 10    
1 b. 9    
2 a. 8    
2 b. 3    
3 a. 5    
3 b. 2    
4 a. 30    
4 b. 8    
5 a. 4    
5 b. 10    
6 a. 5    
6 b. 90    
7 a. 3    
7 b. 9    


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