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Interactive
Quia

Quia: Decimal and Whole Number Jeopardy

For Students 3rd - 6th Standards
You can use this web site to compare and round numbers and to also practice rounding whole numbers and decimals. You can just play by yourself or with another player! See how many points you can get.
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Interactive
Quia

Quia: Rounding Decimals/whole Numbers

For Students 4th - 6th Standards
Two learning games and flashcards are available for students to practice rounding decimals to the nearest whole number.
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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
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
Quia

Ixl Learning: Estimate Sums With Numbers Up to 100,000

For Students 3rd - 5th
Practice rounding numbers to the nearest ten to estimate the sum.
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Unit Plan
Sophia Learning

Sophia: Finding Area With Squares: Lesson 4

For Students 3rd - 5th Standards
Step by step, this video lesson [4:34] will show you how to add up the number of squares that cover an object in order to find the area of a figure. It is 4 of 7 in the series titled "Finding Area with Squares."...
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Comparisons With Rounding

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Compare and order decimals by rounding the decimals
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Interactive
Mangahigh

Mangahigh: Number: Round to the Nearest Unit, 10, 100 and 1000

For Students 4th - 6th Standards
Round units to the nearest ten, hundred, and thousands place.
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Interactive
Mangahigh

Mangahigh: Number: Round Using Significant Figures

For Students 4th - 6th Standards
Explore how to round using significant figures.
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Unit Plan
Mangahigh

Mangahigh: Number: Leave Answers as Radicals

For Students 9th - 10th
This site provides students practice with the concept of radicals. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
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Interactive
Mangahigh

Mangahigh: Number: Round Decimals

For Students 4th - 6th Standards
Yest your knowledge of rounding numbers and decimals.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Subtraction

For Students 6th - 7th Standards
[Free Registration/Login may be required to access all resource tools.] Find the difference of decimals by subtracting vertically.
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Interactive
Soft Schools

Soft Schools: Rounding Numbers Game

For Students 2nd - 4th Standards
Students practice rounding numbers, and their score is kept at the top of the page. At the beginning of the game, you choose the minimum and maximum numbers. Round to the nearest ten, hundred, or thousand.
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Unit Plan
Discovery Education

Discovery Education: Web Math: How to Round a Number

For Students 3rd - 5th Standards
This site provides a description and helpful hints on how to round numbers to any place value. Content also includes an interactive problem solver complete with a full description of how the answer was accomplished.
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Unknown Type
Soft Schools

Soft Schools: Estimation Word Problem Quiz

For Students 4th - 6th
This word problem quiz will require you to make estimations based on the given information.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Large Decimal Rounding to Decimal Representations

For Students 6th Standards
[Free Registration/Login may be required to access all resource tools.] Round very large numbers to a given place value.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Addition

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Add decimals with and without rounding
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Subtraction

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Subtracting decimals with and without rounding
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Estimation of Whole Number

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Round whole numbers in order to estimate sums and differences.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Estimation of Whole Number

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Round and find compatible whole numbers in order to estimate products and quotients.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Mixed Number Rounding to the Nearest Whole

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Round given mixed numbers to the nearest whole number.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Front End Estimation Grade 6

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Estimate sums and differences of decimals using front-end estimation.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Commutative Property of Addition With Decimals

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Identify and apply the commutative and associative properties of addition in decimal operations
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Addition Using Front End Estimation

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Use front-end estimation to estimate decimal sums