Rounding Numbers and Place Value
Place value tells you the amount each digit of a number is worth. Knowing a number's place value is very important because it can change a digit's worth. Place value is also extremely important when rounding numbers. Rounding numbers is used to give a precise estimate, but not the exact amount. Please read the page on Place Value before you go to Rounding Numbers, so that you can be more successful with Rounding Numbers.