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Activity
Illustrative Mathematics

Hundred Chart Digit Game

For Teachers K - 2nd Standards
Math games, especially in the primary grades, provide great opportunities for developing the number sense of young mathematicians. Working in pairs with a deck of single-digit cards, students take turns drawing two cards and reading the...
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Interactive
Curated OER

Round Numbers to the Nearest 10

For Students 2nd - 4th
Young scholars round one and two digit numbers to the nearest 10. They complete 11 problems total on this worksheet.
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Interactive
Scholastic

Study Jams! Estimate Whole Numbers

For Teachers 2nd - 4th Standards
Expand on prior knowledge of place value to teach your class how to round whole numbers. This essential skill is explained with the help of a number line before introducing the explicit rules for rounding numbers up and down. Work...
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Lesson Plan
Curated OER

Place Value and Rounding

For Teachers 2nd - 3rd
Use rounding mountains and number lines to learn how to round numbers and learn place value. Learners will use a worksheet to help them round numbers. They will play a game called "Place Value Match-up" to help with skill practice. All...
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Lesson Plan
Curated OER

Using a Round-O-Meter to Estimate

For Teachers 1st - 3rd
Explore the concept of rounding numbers to the nearest dollar or dime. Youngsters use a "round-o-meter" to determine which direction to round a number. They make round-o-meters out of a piece of paper, a piece of string, and a paper clip.
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Lesson Plan
Curated OER

Money Makes the Fair-Go-Round

For Teachers 2nd - 3rd
Students explore the value of money. In this money lesson, students investigating combining amounts of money and making change. Students count sets of money and make fair trades. Resources are provided.
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Worksheet
Curated OER

Rounding to the Nearest Tens or Hundreds

For Students 2nd - 4th
Project these rounding problems as an all-class warm up, since they are written in large text and lend nicely to this purpose. Scholars round three numbers, two double-digit and one triple-digit, to both the hundreds and tens place. Note...
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Lesson Plan
Curated OER

Can You Name That Shape?

For Teachers 2nd - 3rd
Learners use materials to build, investigate, and draw two-dimensional shapes (polygons). They combine the shapes they have built and draw from the pile to begin a round-robin activity to name and determine the attributes of a selection...
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Worksheet
Curated OER

Round to the Nearest Ten

For Students 2nd - 3rd
In this rounding worksheet, students solve 6 story problems in which two digit numbers will be rounded to the nearest ten. There are no examples on this page.
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Worksheet
Curated OER

Round Two-Digit and Three-Digit Numbers Practice 2.3

For Students 2nd - 3rd
In this rounding worksheet, students solve 27 problems in which two or three digit numbers are rounded to the underlined place.
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Worksheet
Curated OER

Round to Nearest 10-Hundreds Chart

For Students 2nd - 3rd
In this rounding worksheet, students round part of a hundreds chart up to the nearest 10 and the remaining part down. A website reference for additional resources is given.
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Worksheet
Curated OER

High-Number Toss Word Problem

For Students 2nd - 4th
In this problem solving activity, students solve and answer the 4 short answer questions to a High-Number Toss math word problem involving calculations and probability.
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Worksheet
Curated OER

Round Each Number to the Nearest Ten

For Students 2nd
In this problem solving worksheet, 2nd graders practice rounding off 15 2 and 3 digit whole numbers to the nearest ten. Students write their answers on the lines provided.
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Worksheet
Curated OER

Rounding to the Nearest Hundred

For Students 2nd - 4th
In this rounding learning exercise, students round a set of 18 numbers to the nearest hundred. Numbers are all 3 digit or 4 digit. There are five rows of three numbers.
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Worksheet
Curated OER

Rounding 3

For Students 2nd - 3rd
Here is a rounding numbers to the nearest ten worksheet in which pupils read two-digit numbers and round them to the nearest ten. They solve 10 problems.
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Worksheet
Curated OER

Rounding Numbers

For Students 2nd - 3rd
Learners round three-digit and four-digit numbers to the nearest hundred. They solve 10 problems.
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Lesson Plan
Birdville Independent School District

Friendly Numbers

For Teachers 1st - 3rd Standards
There are a number of different strategies young mathematicians can use when adding two-digit numbers. This lesson focuses on making addition easier by rounding the addends to friendly numbers, with the resulting sum being adjusted...
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Worksheet
Curated OER

Round 4-Digit Numbers

For Students 1st - 3rd
In this rounding numbers practice worksheet, students sharpen their problem solving skills as they solve 6 story problems that require them to round 4-digit numbers.
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Lesson Plan
Illustrative Mathematics

Comparing Numbers

For Teachers K - 2nd Standards
Young mathematicians spin their way to a deeper number sense with this fun, collaborative activity. Using two spinners, one with the numbers 0-9 and the other with the decades 00-90, pairs of students take turns building and comparing...
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Lesson Plan
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1
Laboratory for Atmospheric and Space Physics

Where Are We Going?

For Teachers 2nd - 6th Standards
Come take a ride on the space bus! Scholars go on an imaginary trip to pick up their peers from the inner and outer planets while reinforcing math skills. First, learners round decimals to identify each planets' distance from Earth....
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Worksheet
Curated OER

Rounding Numbers: Worksheet H

For Students 2nd - 3rd
In this math learning exercise, students will round number between 100 and 1,000 to the nearest hundred. There are about 100 numbers.
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Worksheet
Curated OER

Rounding to the Nearest Tens of Hundreds (In Words)

For Students 2nd - 4th
Practice rounding with these word-form problems. There are ten sentences here, each with one two or three-digit number to round. Learners round to either the nearest tenth or hundredth. The wording may be confusing, as it instructs them...
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Worksheet
Curated OER

Addition Word Problems - Three Digits

For Students 2nd - 4th
In this addition word problem worksheet, students solve a total of 5 problems, showing their work in spaces provided. Answers are included on page 2.
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Interactive
Arcademics

Kangaroo Hop

For Students 2nd - 3rd Standards
Scholars play against three other participants to show what they know about geometric figures. Starting at the beginning, kangaroos jump from shape to shape to match the figure to the displayed word and make their way to the finish line. 

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