This storybook explains the process of rounding numbers to achieve a close estimate without needing a precise answer. The story outlines the basic rounding rules, emphasizing the importance of understanding place value and the number immediately to the right of the digit to be rounded. If this number is 5 or greater, the story advises rounding up; otherwise, the number remains unchanged, and all digits to its right are replaced with zeros. The story demonstrates how rounding works through examples, such as rounding 147 to 150 and 341 to 300.