Learning Resource Type

Classroom Resource

Rounding to the Nearest Ten or Hundred

Subject Area

Mathematics

Grade(s)

3

Overview

Learning to assess the reasonableness of an answer is an important mathematical skill. It’s students' way of seeing if they are on the right track when problem-solving. Sometimes we use rounding to estimate a solution.

    Mathematics (2019) Grade(s): 3

    MA19.3.10

    Identify the nearest 10 or 100 when rounding whole numbers, using place value understanding.

    Unpacked Content

    UP:MA19.3.10

    Vocabulary

    • Place value
    • Round
    • Nearest 10
    • Nearest 100
    • Benchmark number
    • Midpoint

    Knowledge

    Students know:
    • Values of the digits in the ones, tens, and hundreds places.
    • How to determine what is halfway between two multiples of 10 or 100.
    • Strategies for rounding to the nearest 10 or 100.
    • Use place value vocabulary and logical reasoning to justify solutions when rounding.

    Skills

    Students are able to:
    • Round whole numbers to the nearest 10 or 100.
    • Identify a possible value for a number which will result in a given number rounded to the nearest 10 or 100.
      Example: What value will result in 270 when rounded to the nearest 10? Identify the possible values.

    Understanding

    Students understand that:
    • rounding is determining which ten or hundred a number is closer to.
    Link to Resource

    Resource Provider

    PBS
    Accessibility
    License

    License Type

    CUSTOM
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