Scholastic
Scholastic: Max's Math Adventures: Subtraction Square Dance
This site has a square dance rhyme with some fun subtraction practice. Teachers will appreciate the activity page, the extra challenges, and the teacher's guide for easy lesson planning.
Varsity Tutors
Varsity Tutors: Aplus Math: Subtraction Worksheets
Create customized subtraction worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can also be...
Other
Project Happy Child: Free Subtraction Worksheets
2000 basic subtraction worksheets are available at this web site. They can be printed and used for a variety of practice purposes. Some helpful hints are included to avoid mindless practice that could quickly become counter productive.
ClassFlow
Class Flow: Understanding Subtraction
[Free Registration/Login Required] This flipchart is a ten-question quiz on subtraction that can be used with Activotes. The questions are phrased in different ways so that students must solve the problems in various ways.