for Teachers for Schools for Working Scholars for College Credit
for Teachers for Schools for Working Scholars for College Credit
Course Navigator
Addition & Subtraction Fact FamiliesNext Lesson 

Multiplication & Division Fact Families

Chapter 4 /  Lesson 41
Try it risk-free for 30 days
Instructor: Kadoria Burgess

I have a Bachelor's degree in Elementary Education and Spanish. I have taught for 5 years in bilingual classrooms of various elementary grade levels.

So you already know your multiplication facts, and you're having a hard time remembering your division facts? Well, in this lesson, you will learn how to use a fact family house to figure out the facts of the other operation - multiplication or division.

A Family with only Three Members

Think about the house that you live in and the family members that live in that house. Your family members are usually the only people that live in your house, right? You may have visitors that come to your house, but your family members are the only ones that LIVE there. Well, this is similar to a fact family house, or a set of three numbers that share the same multiplication and division facts. Take the numbers 2, 7, and 14, for example. I know that 2 times 7 equals 14. On the other hand, I know that 14 divided by 7 equals 2. It's important to remember that in a fact family, you will only see the same 3 members or numbers. This means that 2, 3, 4, and 5 could NOT make a fact family because there are too many numbers, and there can only be three. Also, 6, 9, and 21 could NOT be a fact family because they do not share the same multiplication and division facts. In addition, it's important to note that to create a fact family house, you will need to put the three numbers in the corners of the triangular roof, with the largest number at the top.

fact family house

A House with Four Floors

In addition to only having three members or numbers, a fact family house will be tall because it has four floors! Two of the floors will show a number sentence of multiplication, or repeated addition of equal groups. The other two floors will show a number sentence of division, or repeated subtraction of equal groups. This is because multiplication is the inverse, or opposite operation that undoes division, and division is the inverse, or opposite operation that undoes multiplication. For example, take the numbers 3, 5, and 15. When you multiply 3 by 5 you get 15, and 5 times 3 is 15. Then, in order to divide, go the opposite direction and start with 15, so 15 divided by 3 is 5, and 15 divided by 5 is 3.

tall house

To unlock this lesson you must be a Study.com Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use Study.com

Become a Study.com member and start learning now.
Become a Member  Back
What teachers are saying about Study.com
Try it risk-free for 30 days
Description

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Research Schools, Degrees & Careers

Get the unbiased info you need to find the right school.

Browse Articles By Category

Browse an area of study or degree level.

Recommended Articles
You are viewing lesson Lesson 41 in chapter 4 of the course:

 Back To Course

Math for Kids

23 chapters | 325 lessons

{{courseNav.course.topics.length}} chapters | {{courseNav.course.mDynamicIntFields.lessonCount}} lessons | {{course.flashcardSetCount}} flashcard set{{course.flashcardSetCoun > 1 ? 's' : ''}}

Ch 4. Math Basics for Elementary School
Ch 5. Statistics for Elementary...

Multiplication & Division Fact Families Related Study Materials

Create an account to start this course today
Try it risk-free for 30 days!
Create an account

Explore our library of over 79,000 lessons

Browse by subject
Support