E-learning for Kids
E Learning for Kids: Math: Husky Sled: Subtraction Strategies
Take a ride on the sled with Alexander and Keiko!
University of Saskatchewan (Canada)
Emr: Exercises in Math Readiness
Practice your mental math skills with this site, where practice problems in addition, subtraction, multiplication, and division abound. Introductory, intermediate, and advanced levels are available. Just type in your answer and you'll...
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.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Figuras Magicas
In Spanish. This site contains many games for practicing mental numerical calculation of basic operations.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Figuras Magicas
Interactive fun activities that could be used in the classroom to practice mental math skills.
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.
Other
Ns Dept. Of Education: Mental Math Questions and Answers
Designed to inform teachers, this booklet addresses questions they may have about how to teach Mental Math.
Mangahigh
Mangahigh: Number: Mental Addition and Subtraction of Large Numbers
This site provides students practice with the concept of mental addition. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
Mangahigh
Mangahigh: Number: Mental Multiplication and Division
This site provides students practice with the concept of mental multiplication and division. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
Mangahigh
Mangahigh: Number: Mental Multiplication and Division With Decimals
This site provides students practice with the concept of mental multiplication and division with decimals. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to...
Educaplus (Jesús Peñas Cano)
Educaplus: Ecuaciones Visuales
In this activity you can practice mental math by answering each question with the help of the given pictures. You can choose from three different levels.
CK-12 Foundation
Ck 12: Arithmetic: Mental Math to Add and Subtract Decimals
[Free Registration/Login may be required to access all resource tools.] Find sums and differences of decimals using mental math.
CK-12 Foundation
Ck 12: Arithmetic: Mental Math to Divide by Decimal Powers of Ten
[Free Registration/Login may be required to access all resource tools.] Use mental math to divide by decimal powers of ten and find a quotient.
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.
CK-12 Foundation
Ck 12: Arithmetic: Mental Math to Multiply by Decimal Powers of Ten
[Free Registration/Login may be required to access all resource tools.] Use mental math to multiply by decimal powers of ten.
CK-12 Foundation
Ck 12: Algebra: Extend Numerical Patterns
[Free Registration/Login may be required to access all resource tools.] Extend numerical patterns by identifying and following rules
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Table of Contents
This website from The Math Page explains some helpful hints about how to do mental math.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Multiplication: Mental Calculation
If you are looking for a website that explains and defines the basics of mental multiplication with helpful hints then you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.
Other
Ministerio De Educacion: Suma Y Resta
Practice your mental math by finding two numbers knowing their sum and difference.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: Resta Y Producto
Practice your mental math by finding two numbers knowing their difference and product.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: Calculo Mental Todo Terreno
Practice your mental math with this application by finding the sum of two: whole numbers, integers, decimals or fractions. You can choose two different levels of difficulty.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: El Juego Del 15
Take this challenge by trying to put in order the pieces from 1 through 15. Geogebra plugin required.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: Doce Cerillas
See if you can connect the dots of the same color with horizontal and vertical segments without leaving the grid and without intersecting the lines or crossing the colored dots.
Illustrative Mathematics
Illustrative Mathematics: 4.nbt Mental Division Strategy
Jillian says Aligns with 4.NBT.B.6.