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This page provides a list of educational videos related to Understanding Division. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Understanding Division.
Understanding fractions as division
By Khan Academy
Understand the relationship between fractions, division, and mixed numbers.
Division using place value understanding
By Khan Academy
Make division problems easier by thinking about place value and using the distributive property.
Understanding fractions as division
By Khan Academy
Understand 3/2 on the number line by thinking about it as a mixed number.
Understanding fractions as division
By Khan Academy
Learn how 3 ������������ 2 is the same as 3 ��������������������� 1/2, which is the same as 3/2.
Understanding fractions as division
By Khan Academy
Learn how a/b and a������������b are equivalent. That is, the fraction bar and the division symbol mean the same thing.
Understand Division as an Unknown Factor Problem
By Hoodamath tutorials
division problems with unknown factors
Grade 3 Math - Understanding Division
By Lumos Learning
Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.
Tags: Operations & Algebraic Thinking, whole numbers, 3.OA.A.2, standardized tests
Understanding fractions as division: word problems
By Khan Academy
Learn how a/b and a������������b are equivalent. That is, the fraction bar and the division symbol mean the same thing.
Blueberries for friends | Multiplication and division | 3rd grade
By Khan Academy
Use a picture and understanding of multiplcation to solve a division word problem. ������������Watch out for unnecessary information.
Evaluating Logarithms | MathHelp.com
By MathHelp.com
In this example, notice that we have a polynomial divided by a binomial, and our binomial is in the form of an x term minus a constant term, or x – c. In this situation, instead of having to use long division, like we did in the previous lesson, we can divide the polynomials using synthetic division, which is a much more efficient method. Here’s how it works. We start by finding the value of c. Since –c = -3, we know that c = 3. Next, we put the value of c inside a box, so we put the 3 inside a box. It’s very important to understand that the number that goes inside the box always uses the opposite sign as the constant term in the binomial. In other words, since the constant term in the binomial is -3, the number that goes inside the box, is positive 3. Next, we write the coefficients of the dividend, which are 2, -7, 4, and 5. Be very careful with your signs. Now, we’re ready to start our synthetic division. First, we bring down the 2. Next, we multiply the 3 in the box times 2 to get 6, and we put the 6 under the -7. Next, we add -7 + 6 to get -1. Next, we multiply the 3 in the box times -1 to get -3, and we put the -3 under the 4. Next, we add 4 + -3 to get 1. Next, we multiply the 3 in the box times 1 to get 3, and we put the 3 under the 5. Finally, we add 5 + 3 to get 8. Now, notice that we have a 2, -1, 1, and 8 in the bottom row of our synthetic division. These values will give us our answer: the first 3 numbers represent the coefficients of the quotient, and the last number is the remainder. And it’s important to understand that our answer will be one degree less than the dividend. In other words, since our dividend starts with x cubed, and we’re dividing by x, our answer will start with x squared. So our answer is 2x squared – 1x + 1 + 8 over x – 3. Notice that we always use descending order of powers in our quotient. In this case x squared, x, and the constant. Finally, remember that we add the remainder over the divisor, just like we did in the previous lesson on long division, and we have our answer. It’s important to understand that we’ll get the same answer whether we use synthetic division or long division. However, synthetic division is much faster.
3.OA.6 - Meaning of Division (Singapore Math)
By MathwithMrAlmeda
Mr. Almeida explains the meaning of division as an "unknown factor problem." This illustrates 3.OA.6 in the grade 3 Common Core Standards for Mathematics.
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?
Dividing / Division of Integers
By PatrickJMT
This video reviews the rule of signs. It then solves several multiplication and division problems using positive and negative integers.
