CK-12 Foundation
Ck 12: Mental Math to Divide by Whole Number Powers of Ten
[Free Registration/Login may be required to access all resource tools.] Use mental math to divide by whole number powers of ten.
![E workshop.on.ca: Effective Instr'n in Math, K 6: Multidigit Computation [Pdf] Professional Doc](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "E workshop.on.ca: Effective Instr'n in Math, K 6: Multidigit Computation [Pdf] Professional Doc")
Queen's Printer for Ontario
E workshop.on.ca: Effective Instr'n in Math, K 6: Multidigit Computation [Pdf]
Volume 5 in an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for teach basic facts and multidigit computation to students in kindergarten through grade 6.
National Council of Teachers of Mathematics
The Math Forum: K 12 Math Problems, Puzzles, Tips & Tricks
At this site us these tips & tricks to help students become better mental mathematicians.
Other
Saskatoon Public Schools: Mental Math Strategies
Strategies for basic addition and multiplication are explained here and there are several practice worksheets that can be downloaded.
CK-12 Foundation
Ck 12: Arithmetic: Mental Math to Evaluate Products
[Free Registration/Login may be required to access all resource tools.] Evaluate numerical expressions using mental math.
CK-12 Foundation
Ck 12: Arithmetic:
[Free Registration/Login may be required to access all resource tools.] Solve for the unknown in a proportion using mental math.
CK-12 Foundation
Ck 12: Mental Math to Multiply by Whole Number Powers of Ten
[Free Registration/Login may be required to access all resource tools.] Use mental math to multiply by whole number powers of ten and find a product.
Varsity Tutors
Varsity Tutors: Aplus Math: Flashcard Creator
Create and print your own flashcards to practice your basic math facts. Choose either addition, subtraction, multiplication, or division, as well as which sets of numbers you would like to practice. The flashcards come in sets of twelve,...
Varsity Tutors
Varsity Tutors: Aplus Math: Flashcard Creator
Create and print your own flashcards to practice your basic math facts. Choose either addition, subtraction, multiplication, or division, as well as which sets of numbers you would like to practice. The flashcards come in sets of twelve,...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
Can Teach
Can Teach: Who Has More or Less?
Want to practice addition and subtraction skills in a new and exciting way? Use this online math lesson card game activity.
Educaplus (Jesús Peñas Cano)
Educaplus: Puzzle Algebraico
In this activity you can practice mental math by finding the value of each of the objects with the help of the given pictures.
Other
P.u.e.m.a.c.: Juegos
Try these interactive math games to test and train the mind. Good explanation is given for each of the games. Requires Java.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Problemas De Entrenamiento Para El Entretenimiento
In Spanish. This site is aimed at those who enjoy solving problems. You will find a collection of Arithmetic and Geometry problems which present some challenges and are interesting and fun.
Texas Instruments
Texas Instruments: Mad Minutes
This activity should help kids to perform quick computations using mental math, become less reliant on calculators for computation, and remember algorithms for common math problems by using repetition and practice.
Other
Lesson Plan Mental and Written Multiplication Algorithms
This lesson plan offers a variety of algorithms and systematic errors that occur in written multiplication problems.
AAA Math
Aaa Math: Adding Tens
This game helps you practice adding tens. You will get to see a percent score of the answers you have correct, as well as running totals of the answers you have correct and incorrect.
Khan Academy
Khan Academy: Add and Subtract Fractions: Word Problems
In this exercise, students practice adding and subtracting fractions with unlike denominators word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.