AAA Math
Aaa Math: Rounding to the Nearest Ten Thousand
This site offers exercises and games for students to practice rounding whole numbers to the nearest ten thousand.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Comparisons Without Rounding
[Free Registration/Login may be required to access all resource tools.] Compare and order decimals without using rounding.
E-learning for Kids
E Learning for Kids: Math: Elephant Plant: Numbers to 9999
Students will play multiple learning games to explore numbers up to 9999. Games include putting numbers into words, rounding, counting, and dividing.
Quia
Quia: Angles
Practice rounding numbers to the nearest whole number or fraction with this interactive game. Check out this helpful resource!
Khan Academy
Khan Academy: Round to Nearest 10 or 100 on the Number Line
Practice rounding to the nearest ten and rounding to the nearest hundred on the number line. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints....
Primary Resources
Primary Resources: Rounding Numbers and Estimating
A large selection of teacher resources to help teach and review the concepts of rounding and estimating. There are many worksheets and a few PowerPoint presentations.
E-learning for Kids
E Learning for Kids: Math: Ice Cream Shop: Numbers to 100,000,000
On this interactive site students learn to read and write large numbers in numerals, round numbers to millions, and locate prime and composite numbers.
E-learning for Kids
E Learning for Kids: Math: Movie Theater: Numbers to 9999
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.
Math Slice
Math Slice: Rounding: Math Worksheets
This tool allows you to create worksheets where students must round whole numbers or decimal numbers to various place value positions.
CK-12 Foundation
Ck 12: Arithmetic: Product Estimation With Mixed Numbers/fractions
[Free Registration/Login may be required to access all resource tools.] Estimate products and quotients of fractions and mixed numbers.
CK-12 Foundation
Ck 12: Arithmetic: Quotient Estimation With Mixed Numbers/fractions
[Free Registration/Login may be required to access all resource tools.] In this lesson students estimate quotients of fractions and mixed numbers using benchmarks and rounding. Students examine guided notes, review guided practice, watch...
ClassFlow
Class Flow: Estimating
[Free Registration/Login Required] Students will learn the rounding method of estimating whole numbers. Assessment questions are included.
Quia
Quia: Rounding Decimals Whole Numbers Concentration
Use this website to practice rounding decimals to the nearest whole numbers using a concentration game format.
PBS
Pbs: Rounding to Wholes, Tenths, and Hundredths
On some nights only certain numbers can get in to the Number Line Party, what's a decimal to do? This interactive exercise combines activities here appear in two other Number-Line Party lessons and focuses on using what you know about...
Khan Academy
Khan Academy: Whole Numbers in Written Form Review
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.
History is Fun
Jan Brett: Seashell Rounding Activity
Sharpen your rounding skills with this interactive game based on Jan Brett's, Comet's Nine Lives. Round correctly to the nearest ten and earn a sand dollar for each correct response. Immediate feedback provided.
AAA Math
Aaa Math: Estimating a Difference
This lesson explains how to estimate differences between whole numbers. Gives practice and games to practice this skill in a helpful and fun way.
Beacon Learning Center
Beacon Learning Center: Round About
Students learn about estimation using a number line and rounding rules through this interactive web lesson.
ClassFlow
Class Flow: Estimating Sums and Differences
[Free Registration/Login Required] This flipchart is designed to teach third grade students the steps in estimating sums and differences. It also reviews rounding numbers to the nearest ten and hundred.
ClassFlow
Class Flow: Rounding
[Free Registration/Login Required] In this flipchart, students apply estimation strategies to predict or determine the reasonableness of answers in situations involving computation on rational numbers in various forms including whole...
ClassFlow
Class Flow: Estimate Rounding
[Free Registration/Login Required] The teacher will use this lesson plan to review rounding, estimation, and computation.
Quia
Quia: Hangman Rounding
Don't get "hung up" when you play this old game with a new twist. Simply, round each numbers to the nearest thousand then, find the sum or difference. Knowledge of place value units, where to put the comma, and good computation skills...
NumberNut
Number Nut: Rounding Numbers to the Nearest Ten Memory Challenge
Play this online memory game by flipping cards and selecting pairs that match by rounding one of the numbers to the nearest ten. Eliminate pairs and practice your rounding skills.
Shodor Education Foundation
Shodor Interactivate: Lesson: Area
This lesson plan helps students explore the mathematical concept of area and features resource links to further learning. CCSS.Math.Content.3.MD.C.7.a Find the area of a rectangle with whole-number side lengths by tiling it