# EXT: Multiply a single digit number by a three digit number

Lesson

How do we multiply a single digit number by a $3$3 digit number?

The easiest way to think about it is $3$3 separate multiplications added together.

We can multiply the single digit number by the ones in the $3$3 digit number add this to the multiplication of the tens add this to the multiplication of the hundreds.

So what does this look like?

#### Examples

##### Question 1

What is double $600$600?

##### Question 2

Find $130\times3$130×3.

##### Question 3

Use a calculator or other multiplication strategy to solve:

$777\times7$777×7