AAA Math
Aaa Math: Estimating a Sum
Students can practice estimating sums to the nearest thousand in a series of self-check exercises and timed learning games.
AAA Math
Aaa Math: Estimating a Difference
Students can practice estimating differences in a series of self-check exercises and timed learning games.
AAA Math
Aaa Math: Estimation
Improve your estimation and rounding skills with these interactive games that are challenging and fun. Excellent skills practice for rounding, estimating sums and differences, and front-end estimation. Links to lesson plans, teacher...
AAA Math
Aaa Math: Subtraction Using Estimation
This site explains how to estimate differences by rounding. Games and exercises are provided to practice the skill.
AAA Math
Aaa Math: Addition Using Estimation
This site explains how to estimate sums by rounding whole numbers. Games and exercises are provided to practice the skill.
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: Elem Math: Rounding to the Nearest Whole Number
[Free Registration/Login may be required to access all resource tools.] The video describes the process of rounding a decimal to the nearest whole number and gives an example. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Round to the Nearest 2 Decimal Places or the Hundredths Place
[Free Registration/Login may be required to access all resource tools.] The video explains an example of rounding a number to the nearest hundredth. The video is followed by a series of practice questions to assess student comprehension...
Shodor Education Foundation
Shodor Interactivate: Estimator Four
This applet game for two allows you to practice estimating at several different levels of accuracy. You can choose whole number addition, multiplication, percentages or any combination of the three.
Shodor Education Foundation
Shodor Interactivate: Lesson: Estimation
This lesson plan is designed to help students learn to make estimates. Resources are linked to help support the teacher and offer exploration and practice to students.
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.
Math Is Fun
Math Is Fun: Rounding Numbers
What is rounding, and what does it mean to round up and round down? Learn how to round numbers via simple steps and examples.
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...
Quia
Quia: Decimal and Whole Number Jeopardy
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.
Quia
Quia: Rounding Decimals/whole Numbers
Two learning games and flashcards are available for students to practice rounding decimals to the nearest whole number.
Scholastic
Scholastic: Study Jams! Math: Numbers: Estimate Whole Numbers
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...
Scholastic
Scholastic: Study Jams! Math: Problem Solving: Estimate Whole Numbers
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...
Quia
Ixl Learning: Estimate Sums With Numbers Up to 100,000
Practice rounding numbers to the nearest ten to estimate the sum.
Sophia Learning
Sophia: Finding Area With Squares: Lesson 4
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."...
CK-12 Foundation
Ck 12: Arithmetic: Decimal Comparisons With Rounding
[Free Registration/Login may be required to access all resource tools.] Compare and order decimals by rounding the decimals
Mangahigh
Mangahigh: Number: Round to the Nearest Unit, 10, 100 and 1000
Round units to the nearest ten, hundred, and thousands place.
Mangahigh
Mangahigh: Number: Round Using Significant Figures
Explore how to round using significant figures.
Mangahigh
Mangahigh: Number: Leave Answers as Radicals
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.
