# Place value and rounding

Contents

We've been exploring place for a while, thinking about ones, tens, and hundreds. But now we're ready to tackle all whole numbers, including numbers in the thousands, millions, and beyond!

## Intro to place value

## How 10 relates to place value

## Ways to write numbers (expanded form and written form)

## Comparing multi-digit numbers

## Rounding whole numbers

If you're looking to create an army of robot dogs, will it really make a difference if you have 10,300 dogs, 9,997 dogs or 10,005 dogs? Probably not. All you really care about is how many dogs you have to, say, the nearest thousand (10,000 dogs). In this tutorial, you'll learn about conventions for rounding whole numbers. Very useful when you might not need to (or cannot) be completely precise. Common Core Standard: 4.NBT.A.3