# Vertical Multiplication - Examples, Exercises and Solutions

## Vertical Multiplication

Learn the multiplication tables thoroughly and follow these rules:

### First rule

Write down the exercise correctly: The ones under the ones, the tens under the tens, and the hundreds under the hundreds.
The number with more digits will be written above the one with fewer digits.

### Second rule

When the product is greater than $9$ it is stored at the top left and must be remembered to add it to the next result.

### Third rule

Before moving on to multiply the next digit, the "numbers stored" at the top left must be erased to avoid confusion.

### Fourth rule

We will add a $0$ below the result to indicate that we have moved to the next digit, each row of results will start one place to the left in relation to the previous row.

## Examples with solutions for Vertical Multiplication

### Exercise #1

Darío eats 3 cookies per minute.

How many cookies does Darío eat in an hour?

### Step-by-Step Solution

$180$

### Video Solution

$120$

### Video Solution

$114$

### Video Solution

$140$

### Video Solution

$168$

### Video Solution

$156$

### Video Solution

$159$

### Video Solution

$164$

### Video Solution

$180$

### Video Solution

$225$

### Video Solution

$231$

### Video Solution

$256$

### Video Solution

$248$

### Video Solution

$258$

### Video Solution

$273$