Place Value with Decimals: Lesson 12 (Reading, Writing, Comparing, and Rounding Decimals)

In this lesson, students will use place value understanding to round decimals to the nearest whole. Round decimals to the nearest ten, hundred, thousand, etc., using a number line. Round decimals to the nearest whole using a number line. While students haven't rounded decimals to the nearest ten hundred, thousand, etc., they have rounded whole numbers to those place values. Rounding up a number results in a change in the value of the place to which youre rounding, where rounding down does not.