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Lesson: Estimating Sums and Differences: Four-Digit Numbers Mathematics • 4th Grade

In this lesson, we will learn how to estimate sums and differences between numbers with up to four digits by rounding to the nearest ten, hundred, and thousand.

Lesson Plan

Students will be able to

  • estimate sums by rounding to the nearest 1,000, 100, or 10,
  • estimate sums by rounding to the highest place value,
  • discuss the accuracy of estimates.

Lesson Video

Video Thumbnail
16:06

Lesson Playlist

  • Estimating the Result of a Subtraction Sentence by Rounding Each Number to the Nearest Hundred
    02:23
  • Estimating the Result of an Addition Sentence by Rounding Each Number to the Nearest Ten
    02:15
  • Estimating the Addition of Two Whole Numbers
    01:58

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