Use mental math to multiply by decimal powers of ten.

A free CK-12 account is required to view all materials.

Understand and evaluate the multiplication of decimals by whole numbers.

A free CK-12 account is required to view all materials.

Multiply and simplify the product of rational numbers.

A free CK-12 account is required to view all materials.

Video tutorial uses examples to reinforce understanding of how to multiply and divide mixed numbers. [6:07]

In this lesson, students use their physical bodies to solve multiplication and division problems, using Hula Hoops to help group and enact math problems.

Counting the number of beats in a common folk song, the students will use composition and classroom instruments to discover different combinations for accompaniment.

What is the commutative property? Why not ask Lois. She knows all about math "lingo." A site where kids can find math definitions explained in "kid friendly" language.

Children need to understand why the mathematical properties work and how they are applied. In this lesson, we explore modeling and "proving" the associative property. In this lesson, we explore modeling and "proving" the associative property.

Math students offer step-by-step solutions to solving expressions involving decimal division, multiplication, and addition. In the left-hand menu, click on Basic Mathematics, Decimals, Multiple Operations.

Lesson plan in which students calculate area, build areas to a given amount, and calculate the perimeter with the use of Legos. Step by step instructions and videos are provided. CCSS.Math.Content.3.MD.C.7.c Use area models to represent the distributive property in mathematical reasoning.

This lesson plan has students creating a model to find the total number of combinations that can be made from groups of objects. Using a model helps students develop a conceptual understanding of multiplication.

Students develop their understanding of multiplication by grouping objects into equal groups to model the factors and products.

Students can solve real world problems using their understanding of multiplication and division and the relationship they share.

Students work with the concept of equality and balance to solve one and two-step algebraic equations.

Patterns in division and multiplication can be found in nature, and an understanding of these patterns enables scientists to conduct systematic research.

Students are expected to fluently multiply and divide within 100. This allows students to practice their math facts and then check their work using area models.

Multiplication with decimals is a life skill used when making purchases and measuring.

Solving equations supports algebraic thinking which is needed for high school and beyond.