• multiplication of a 4-digit number by a 1-digit number

• multiplication of a 3-digit number by a 2-digit number

What will we learn today?

Whole Numbers

Multiplication

Before we begin, let’s recall some facts about multiplication.

Multiplying three digit by one digit numbers

413x 2

413x 2

6

413x 2

26

413x 2

826

Multiply the numbers

3 x2=6

Multiply the numbers

1 x2=2

Multiply the numbers

4 x2=8

Try this out!

2223x 4

Try this out!

2223x 4

2

+1

3 x 4 is 12.

Try this out!

2223x 4

92

+1

8+1 is 9.

Try this out!

2223x 4

892

+1

2x4 is 8.

Try this out!

2223x 48892

+1

2x4 is 8.

How do we multiply 3-digit number by a 2-digit number ?

Let’s do it step by step

Step 2:The rule is toAdd a zero

Step 1:Multiply 414 by 3

Let’s do it step by step

Step 4:Add up the numbers

Step 3:Multiply 414 by 2

You have done a great job!Let’s move on!

Are you ready to try out the questions?