Framework for Learning:
Leader’ Name: ………………………….……
Rounding Large Numbers ‒
To the Nearest Hundred
Co-Leader’s Name: ………………………….
Instructor’s Initials: ………
Getting Started:
Log into UMATH X
From the menu on the left:
Hover over the Strand: Whole Numbers & Integers
Hover over Section 2: The Meaning of Whole Numbers
Hover over the Lesson: Rounding Large Numbers
Hover over the Sub Lesson: Concepts
Select and complete Sub Sub Lesson: Concept 3
As you work through the lessons, complete the corresponding notes, place value charts and number
lines. Locate and label the whole number on the corresponding number line.
Example 3
We think: 7,693 is closer to ________ than to ________.
We say: 7,693 rounded to the nearest hundred is ________.
Discuss with a partner how to select the number for the beginning and the end of a number line when
rounding to the nearest hundred. Write a summary of you discussion below.
___________________________________________________________________________________
___________________________________________________________________________________
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Working In It:
Round the whole number to the nearest hundred. Justify your answer with the number line.
48,568 rounded to the nearest hundred is _______.
From the menu on the left:
Hover over the Strand: Whole Numbers & Integers
Hover over Section 2: The Meaning of Whole Numbers
Hover over the Lesson: Rounding Large Numbers
Hover over the Sub Lesson: Examples
Select and complete Sub Sub Lessons: Example 3
Compare your answer at the bottom of the previous page with that in the lesson. Correct any mistakes.
Round the following whole numbers to the nearest hundred. Justify each answer with a number line.
1) 68,438 rounded to the nearest hundred is _______.
2) 51,999 rounded to the nearest hundred is _______.
3) 245,950 rounded to the nearest hundred is _______.
4) 3,071 rounded to the nearest hundred is _______.
Compare your answers above with a partner. Discuss and correct any mistakes.
Reflect & Connect:
Write a paragraph on a separate sheet of paper summarizing the steps for rounding whole numbers to
the nearest hundred. Describe any common mistakes to avoid. Include at least two examples
complete with number line models---one involving rounding up and one involving rounding down.
Exchange papers with a partner. Discuss your paragraphs, number lines, and examples.
Correct any mistakes before turning in your work to your teacher.
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