[Free Registration/Login may be required to access all resource tools.] This site offers four videos and a set of practice questions on estimating and comparing meters and centimeters using images and descriptions.

[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to estimate the lengths of objects in feet or yards. Includes video demonstrating a sample problem [0:38] and a set of...

[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...

Students can practice estimating sums to the nearest thousand in a series of self-check exercises and timed learning games.

Students can practice estimating differences in a series of self-check exercises and timed learning games.

Soccer Math: Estimating is a fun way for kids to practice estimating sums, differences, products and quotients. There are different levels of difficulty in each exercise making the game appropriate for a variety of students and grades....

The math worksheet creator allows teachers to create their own math drill worksheets. Teachers can select the type of problem, determine how many numbers they want to use and then just click a button and the worksheet is automatically...

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.

This site explains how to estimate sums of whole numbers. Gives practice and games to practice this skill.

This lesson explains how to estimate differences between whole numbers. Gives practice and games to practice this skill in a helpful and fun way.

This site explains how to round whole numbers to the nearest ten. The information on the site gives exercise problems and games to practice this skill in a fun and helpful way.

Use Glencoe's randomly generated self-checking quiz to test your knowledge of estimating sums and differences. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...

Use Glencoe's self-checking quiz to test your knowledge of rounding fractions and mixed numbers. Each question has a "Hint" link to help. Choose the correct answer for each problem, and click the "Check It" button to how you did.

Give your brain a workout with these challenge problems on rounding. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.NBT.A.1 Use place value...

Create your own math facts worksheets for rounding numbers. Problems can positive and negative numbers and decimal values. The user inputs the maximum and minimum values of the numbers to be used, makes decisions about negatives and...

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.

In this exercise, students practice rounding decimals. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

In this exercise, students practice rounding decimals using a number line. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

In this exercise, students practice rounding decimals. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

The learning activity reviews rounding to the nearest hundred. Students answer ten questions and can check their answers when finished.

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.

A multiple choice game involving rounding numbers to ten, a hundred and to a whole number. There are two options, one with a number line and the other more difficult level, without one.

Only numbers with tenths can get in to the number line party, what's a decimal with hundredths to do? This interactive exercise focuses on using what you know about number lines and rounding to the tenths place and then asks you to think...

What is rounding, and what does it mean to round up and round down? Learn how to round numbers via simple steps and examples.