Multiplication and division
In this topic, we will multiply and divide whole numbers. The topic starts with 1-digit multiplication and division and goes through multi-digit problems. We will cover regrouping, remainders, and word problems.
This course contains 16 segments:
Multiplication intro
Welcome to the concept of multiplication.
Multiplication facts
Learn multiplication facts (sometimes called times tables).
Properties of multiplication
Learn about the commutative, associative, and distributive properties of multiplication. Solve multiplication problems by changing the order of factors (commutativity), the grouping of factors (associativity), and by decomposing the factors (distributive property).
Multiplying by tens
As we'll see in this tutorial, multiplying a multiple of 10--like 10, 20, 30, 40, etc.--by a single digit number is not too much more complicated. Common Core Standard: 3.NBT.A.3
Multiplication by 10s, 100s, and 1000s
Learn to multiply whole numbers by multiples of ten. Example: 7 x 500 = 3500
Multiplication: place value and area models
Most people learn to multiply, but only a select-few actually understand what the multiplication represents. This tutorial, with the help of grids and area models, will allow you to be part of this elite group.
Multi-digit multiplication
Learn to multiply multi-digit whole numbers with and without regrouping.
Relating multiplication and division
Let's see how multiplication and division are related.
Division intro
Welcome to the concept of division.
Division facts
Learn your division facts
Division problems that work out nicely
Learn to solve division problems like 3500 ÷ 50 that work out nicely.
Division: place value and area
Dividing big numbers can be difficult to wrap your mind around. In this tutorial, we'll learn some visual ways to think through large division problems.
Multi-digit division (no remainders)
Learn to divide multi-digit numbers by 1-digit numbers. Answers will not have remainders.
Remainders
Some division problems don't work out perfectly. For example, we know that 6 divided by 3 is 2, and 9 divided by 3 is 3. But, what is 7 divided by 3? Or 8 divided by 3? In division problems like these, we're left with remainders.
Multi-digit division (remainders)
Learn to divide any whole number by a multiple-digit whole number.
Multiplication and division word problems
In this tutorial, we'll start to challenge you with more sophisticated multiplication and division word problems. If you understand mult-digit multiplication and long division, you have all the tools you need to tackle these. May the force be with you!
Get a Reminder
Rating | Not enough ratings |
---|---|
Length | 16 segments |
Starts | On Demand (Start anytime) |
Cost | Free |
From | Khan Academy |
Download Videos | On all desktop and mobile devices |
Language | English |
Subjects | Mathematics |
Tags | Math |
Get a Reminder
Similar Courses
Careers
An overview of related careers and their average salaries in the US. Bars indicate income percentile.
GS Whole Loan Portfolio Closer/Analyst $48k
Whole Body Buyer $71k
Global Marketing Manager, Whole Blood Automation $99k
Write a review
Your opinion matters. Tell us what you think.
Please login to leave a review
Rating | Not enough ratings |
---|---|
Length | 16 segments |
Starts | On Demand (Start anytime) |
Cost | Free |
From | Khan Academy |
Download Videos | On all desktop and mobile devices |
Language | English |
Subjects | Mathematics |
Tags | Math |
Similar Courses
Sorted by relevance
Like this course?
Here's what to do next:
- Save this course for later
- Get more details from the course provider
- Enroll in this course