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

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

Question 2

Question 3