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Activity
AAA Math

Aaa Math: Estimating a Sum by Rounding

For Students 3rd - 5th
Use rounding to estimate the answer to an addition problem in this online game. As you play the game, running totals of correct and incorrect answers and your score are displayed.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Rounding on a Number Line

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Round decimals using a number line.
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Unit Plan
E-learning for Kids

E Learning for Kids: Math: Hamburger Restaurant: Operations With Money

For Students 5th - 6th Standards
On this interactive site students learn to round numbers to the nearest ten thousand, determine the place value of any digit, and use ordinal numbers.
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Unit Plan
Math Is Fun

Math Is Fun: Decimals

For Students 4th - 6th Standards
A good introduction to decimals, which includes a definition of place value and several examples of decimal numbers. Follow links at the bottom of this page to access decimal worksheets as well as information on rounding numbers, adding...
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Unit Plan
E-learning for Kids

E Learning for Kids: Math: Ice Cream Shop: Roman Numerals

For Students 4th - 6th Standards
On this interactive website students practice various math skills using a real life scenario at an ice cream shop. Those skills include identifying and converting Roman Numerals, identifying place value in a number, and sorting numbers...
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Unknown Type
Math Slice

Math Slice: Rounding: Math Worksheets

For Students 3rd - 7th Standards
This tool allows you to create worksheets where students must round whole numbers or decimal numbers to various place value positions.
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Unit Plan
Scholastic

Scholastic: Study Jams! Math: Problem Solving: Estimate Whole Numbers

For Students 2nd - 5th
This site provides great practice on the concept of estimating whole numbers. Students can first learn about the topic by watching a step by step instruction video that also points out areas of concern. Finally, students can practice...
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Interactive
Khan Academy

Khan Academy: Whole Numbers in Written Form Review

For Students 4th
Presents an example of a number converted into its expanded place value form and its word form. Includes several practice questions along with explanations of solutions.
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Unit Plan
Khan Academy

Khan Academy: Round to Nearest 10 or 100

For Students 2nd - 4th Standards
Practice rounding to the nearest ten and rounding to the nearest hundred. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints about rounding.
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Whiteboard
ClassFlow

Class Flow: Rounding to the Nearest 10

For Teachers 1st - 2nd
[Free Registration/Login Required] This flipchart is an introduction/review for rounding to the nearest 10 in 2 and 3 digit numbers.
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Interactive
CK-12 Foundation

Ck 12: Math Grade 4

For Students 4th
Browse resources related to fourth-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
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Activity
The Math League

The Math League: Whole Numbers & Basic Properties

For Students 3rd - 8th Standards
Here is a nice resource for students and teachers about whole numbers and their basic properties. It provides links to information on place value, expanded form, and rounding numbers are just a few of the topics on this page.
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Whiteboard
ClassFlow

Class Flow: Decimal Basics Review

For Teachers 5th - 6th Standards
[Free Registration/Login Required] In this flipchart students review place value, rounding, and estimation.
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Whiteboard
ClassFlow

Class Flow: How to Round

For Teachers 1st - 3rd Standards
[Free Registration/Login Required] Instruction, activity, and assessment are all covered in this flipchart on how to round numbers to different place values.
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Unit Plan
Khan Academy

Khan Academy: Round Decimals Using a Number Line

For Students 4th - 6th Standards
Practice using a number line to round decimal numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Scholastic

Scholastic: Study Jams! Math: Numbers: Estimate Whole Numbers

For Students 2nd - 5th Standards
This site provides great practice on the concept of estimating and rounding whole numbers. Students can first learn about the topic by watching a step by step instruction video that also points out areas of concern. Finally, students can...
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Unit Plan
Khan Academy

Khan Academy: Round Decimals Challenge

For Students 4th - 6th
Round decimals using number lines. Select numbers that round to a given value. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Round Whole Numbers Word Problems

For Students 3rd - 5th Standards
Solve word problems by rounding whole numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Interactive
Calculator Soup

Calculator Soup: Round to Nearest Multiple Calculator

For Students 9th - 10th
Use this rounding calculator to round a number to the nearest multiple. You can round a number up or down to the nearest 2, 4, 5, 10, 50, etc. You can also round to the nearest tenth, hundredth, thousandth, etc. multiple in a decimal place.
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Activity
Teaching Treasures Publications

Teaching Treasures: Year Six Math (Page 2)

For Students 3rd - 8th Standards
This interactive worksheet covers a wide range of math concepts such as Roman Numerals, distributive property, estimating sums, and comparing fractions and decimals. Some concepts may be slightly challenging. Learners can access the help...
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Unit Plan
E-learning for Kids

E Learning for Kids: Math: Inca Temple: Whole Numbers: Large and Ordinal Numbers

For Students 4th - 6th Standards
Join Curi for the festival of the Sun God. Can you work with the big numbers?
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Lesson Plan
Alabama Learning Exchange

Alex: Are Your Numbers Round?

For Teachers 3rd - 5th
Learners will use a variety of activities and games to learn how to round numbers.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.
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Unit Plan
E-learning for Kids

E Learning for Kids: Math: Movie Theater: Numbers to 9999

For Students 3rd - 5th Standards
On this interactive website students practice various math skills using a real life scenario. Those skills include using words to show four-digit numbers, putting numbers in ascending order, and relating large numbers to everyday life.
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Article
Cuemath

Cuemath: Decimals

For Students 6th - 8th
You can understand the concepts of decimals in a clear way with the help of this article. Included are solved examples and interactive questions for review.