Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Subtract Up to 4
Practice subtraction facts up to four using this interactive exercise.
![Jan Brett: Addition Facts Flashcards for 4 Pdf [Pdf] Professional Doc](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Jan Brett: Addition Facts Flashcards for 4 Pdf [Pdf] Professional Doc")
History is Fun
Jan Brett: Addition Facts Flashcards for 4 Pdf [Pdf]
Print out these colorfully illustrated PDF file pages to practice your addition facts when adding a four. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a math...
Wikimedia
Wikipedia: Las Cuatro Operaciones Basicas
In Spanish. encyclopedic explanations of the four basic operations. Also linked to other information on arithmetic.
Illustrative Mathematics
Illustrative Mathematics: F Bf 1,000 Is Half of 2,000
This task is about an online mathematics organization that is trying, over a four-year period, to generate 2,000 math problems that cover all grades. This real-life modeling task could serve as a summative exercise that draws on many...
University of Cambridge
University of Cambridge: Nrich: Games Pelmathism, Multiplication
Use this game to improve your quickness and memorization of multiplication facts. You can set the facts you want to practice on this game.
Quia
Quia: Multiplication Facts Review 1 10
Do you need practice remembering or learning your multiplication facts up to 10 X 10? This flash card practice is the web site for you! There is a link to a list of multiplication facts and their products you can click if you want to see...
Quia
Quia: Multiplication Facts Review 1 10
Do you need practice remembering or learning your multiplication facts up to 10 X 10? This concentration game is the web site for you! There is a link to a list of multiplication facts and their products you can click if you want to see...