# Multiplication and division

Contents

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.

See how you score on these 20 practice questions

Welcome to the concept of multiplication.

Learn multiplication facts (sometimes called times tables).

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).

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

Learn to multiply whole numbers by multiples of ten. Example: 7 x 500 = 3500

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.

Learn to multiply multi-digit whole numbers with and without regrouping.

Let's see how multiplication and division are related.

Welcome to the concept of division.

Learn to solve division problems like 3500 ÷ 50 that work out nicely.

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.

Learn to divide multi-digit numbers by 1-digit numbers. Answers will not have 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.

Learn to divide any whole number by a multiple-digit whole number.

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!