# What is the rule for multiplying by 10 100 1000?

## What is the rule for multiplying by 10 100 1000?

When we multiply a number by 10, the product is the number with 1 zero to its right. When we multiply a number by 100, the product is the number with 2 zeros to its right. When we multiply a number by 1000, the product is the number with 3 zeros to its right.

## How do you multiply a number by 1000?

To multiply a number by 1000, move each digit in that number three place value columns to the left. All digits in the original number remain in the same order. To multiply a whole number by one thousand, a simple trick is to add three zero digits to the end of that whole number.

How do we multiply quickly by 10 or 100 mentally?

When multiplying or dividing by 10 or 100, or any power of ten, for that matter, move the decimal point the same number of places as there are zeros in the power of ten factor.

### How many factors does 1000 have?

What are the factors of 1000? The factors of 1000 are 1 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500,and 1000.

### How to multiply by 10, 100 and 1000?

Multiply and divide by 10, 100 and 1000. 1 Multiply by 10. When you multiply by 10 all the digits move one place to the left. The tens digit moves to the hundreds. The ones digit increases in 2 Multiply by 100. 3 Multiply by 1000. 4 Dividing by 10. 5 Dividing by 100.

Is there a game to multiply and divide by 10?

You can easily multiply and divide by 10. Mental Maths Train is a maths game which focuses on the essential vocabulary of addition, subtraction, multiplication and division. A multiple choice game which can give children confidence in the four arithmetic operations. A game which focuses on numbers from up to 10, to up to 100.

#### How to multiply the number of zeros in 1000?

For example, there are 3 zeros in 1000, so you need to move the digits 3 places to the left to multiply by 1000. To multiply by 10, you move the digits one place value to the left. Look at the slideshow below to see how the place value of each digit changes when you multiply by 10. What is 4.2 x 10?

#### What’s the best way to do multiplication by 10?

Great starter or plenary activity. Useful for mental maths. A useful class teaching resource on division and multiplication by 10 and 100. It includes decimals and is suitable for use on an interactive whiteboard. An interactive whiteboard teaching aid for place value.