Multiplication and division

This course is a part of 5th grade, a 19-course Topic series from Khan Academy.

These tutorials will also help you get comfortable with multiplying and dividing decimals, multiplying multi-digit whole numbers, long division, and solving word problems.

This course contains 4 segments:

Multi-digit multiplication

Learn how to multiply multi-digit whole numbers like 345 times 892.

Multiplying decimals

The real world is seldom about whole numbers. If you precisely measure anything, you're likely to get a decimal. If you don't know how to multiply these decimals, then you won't be able to do all the powerful things that multiplication can do in the real world (figure out your commission as a robot possum salesperson, determining how much shag carpet you need for your secret lair, etc.).

Multi-digit division

We're taking division a step further and moving beyond single-number division. Let's learn to divide any whole number by a multiple-digit whole number! Common Core Standard: 5.NBT.B.6

Dividing decimals

In this tutorial, we'll extend our division skills to include decimals! We get into some pretty fun stuff here including dividing decimals by whole numbers, and dividing whole numbers by decimals. Finally...dividing decimals by decimals. Common Core Standard 5.NBT.B.7