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Multiplication

6 videos
4 skills
You know your multiplication tables (and basic division) from the 3rd grade and are ready to learn how to multiply and divide multi-digit numbers. Imagine the possibilities! This tutorial will make you unstoppable. Common Core Standard: 4.NBT.B.5

Multiplying: 2 digits times 1 digit

VIDEO 1:51 minutes
Let's start by solving a basic multiplication problem. No carrying of numbers in this example!

Multiplying: 3 digits times 1 digit

VIDEO 1:54 minutes
How about this example? We're going to multiply a 3 digit number by a 1 digit number. Again, no carrying involved.

Multiplication without carrying

PRACTICE PROBLEMS
Multiply 2- or 3-digit numbers by 1-digit numbers. No carrying.

Multiplying: 2 digits times 1 digit (with carrying)

VIDEO 2:09 minutes
We use something called the standard method which involves writing the larger of the two numbers on top. Watch.

Multiplying: 3 digits times 1 digit (with carrying)

VIDEO 2:15 minutes
We're carrying numbers in this example. Everyone needs a hand now and then, right?

Multiplying: 4 digits times 1 digit (with carrying)

VIDEO 3:24 minutes
This is getting fun! We're now multiplying FOUR digits times one digit. Remember to carry!

Multiplication with carrying

PRACTICE PROBLEMS
Multiply 3 or 4 digits by 1-digit with carrying.

Multiplying: 2 digit numbers

VIDEO 4:07 minutes
The trick here to remember your place value as you multiply and then add the numbers. We'll demonstrate and make it perfectly clear!

Multiplying 2 digits by 2 digits

PRACTICE PROBLEMS
Multiply 2 digits by 2 digits with carrying.