How to Multiply by 10

When you multiply a number by 10, there’s a super easy trick you can use!

There’s a special case you may come across: If the number you’re multiplying by $10$ isn’t a decimal number. In that case, there is always an invisible point behind the last digit. By moving the point one place to the right, you get a free place. You can fill this place with the digit $0$.

The trick of moving the decimal point when multiplying by 10, is similar to a trick you can use when dividing by 10.