Addition Worksheet 1

1 a.   

450 + 20 = ________

1 b.   

720 + 10 = ________

2 a.   

630 + 40 = ________

2 b.   

360 + 10 = ________

3 a.   

160 + 30 = ________

3 b.   

500 + 20 = ________

4 a.   

160 + 10 = ________

4 b.   

600 + 20 = ________

5 a.   

730 + 20 = ________

5 b.   

220 + 30 = ________

6 a.   

110 + 50 = ________

6 b.   

640 + 10 = ________

7 a.   

200 + 60 = ________

7 b.   

270 + 20 = ________

8 a.   

930 + 0 = ________

8 b.   

300 + 20 = ________

9 a.   

440 + 10 = ________

9 b.   

840 + 10 = ________

10 a.   

240 + 10 = ________

10 b.   

560 + 30 = ________

 

Answer Key

 

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 2003-2014 Maria Miller / HomeschoolMath.net free worksheets