This page provides a list of educational videos related to Multiplication Methods. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Multiplication Methods.

Finding the least (lowest) common multiple (LCM) using the upside down birthday cake method

By Nancy Foote

You can find the least common multiple (lowest common multiple) simply and quickly by using the upside down birthday cake method that this video shows.

Complex Numbers - Multiplying and Dividing

This video lesson contains a few example problems on multiplying and dividing complex numbers. For multiplication, the FOIL method is discussed, and for division, the idea of complex conjugates is discussed.

Least common multiple

By Khan Academy

Sal finds the lcm (least common multiple) of 12 and 36, and of 12 and 18. He shows how to do that using the prime factorization method, which is a just great!

Steps to Multiply Big Numbers Using the Standard Method

By Joseph Gliddon

This video goes step by step though a standard method to multiply a 3 digit number by a 2 digit number. Examples are shown of step by step process for solving multiplication of multi-digit numbers.

Integration By Partial Fractions

By The Organic Chemistry Tutor

This calculus video tutorial provides a basic introduction into integrating rational functions using the partial fraction decomposition method. Partial fraction decomposition is the process of breaking a single complex fraction into multiple simpler fractions. The integrals of many rational functions lead to a natural log function with absolute value expressions. This video explains what to do when you have repeated linear factors and quadratic factors. This tutorial contains many examples and practice problems on integration by partial fractions.

Learn multiplication tables in a structured manner (grade 3 math) - very effective!

By Math Mammoth

This method (I call it a structured drill) allows children to learn the multiplication tables in grade 3 or 4 faster and much more effectively than random drilling!

My book Math Mammoth Multiplication 1 at http://www.mathmammoth.com/multiplica... uses this method also. The book covers both the concept of multiplication and the practice of all the tables. It is available both as an instant download and as printed copy.

See a free example lesson from the book:
http://www.mathmammoth.com/preview/Mu...

In the video, I use the table of 3 as an example and go through this three-step method.

In the first step, children memorize the skip-counting list. For the table of 3 this is: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36. They also practice saying it backwards, from 36 to 3.

In the second step, we work with the table itself, but it is written in order so the child can see its structure. The " randomness " comes from me (the teacher) pointing to various problems in a random order. I also like to point out certain benchmark facts to students: 10 x 3 is 30 and 5 x 3 = 15 are such facts because they're in the 10s table and in the 5s table, which the children probably have learned first.

We also practice the tables " backwards " where the " answers " are written and the student tells how many times 3 they are. For example, I point to ___ x 3 = 24, and the child is supposed to say " 8 " . This type of practice makes children learn basic division facts at the same time without realizing it! This really helps third grade students because division is also a topic for third grade math.

Math Antics - Common Denominator LCD

By mathantics

Least Common Multiple LCM

By tecmath

One-step equations with multiplication and division

By Khan Academy

Let's get a conceptual understanding of why one needs to divide both sides of an equation to solve for a variable.

One-step equations with multiplication and division

By Khan Academy

Let's ease into this, shall we? Here's an introduction to basic algebraic equations of the form ax=b. Remember that you can check to see if you have the right answer by substituting it for the variable!

One-step equations with multiplication and division

By Khan Academy

Remember that what you do to one side, you have to do to the other. Will you multiply or divide both sides to dump the fraction, x/a? Let's do it together.

One-step equations with multiplication and division

By Khan Academy

This equation can be simplified through a single step to solve for the variable. Can you help?

Least Common Multiple Trick LCM

By tecmath

One-step equations with multiplication and division

By Khan Academy

This equation can be simplified through a single step to solve for the variable. Can you help?

One-step equations with multiplication and division

By Khan Academy

Remember that what you do to one side, you have to do to the other. Will you multiply or divide both sides to dump the fraction, x/a? Let's do it together.