[Free Registration/Login Required] This flipchart is a series of Activote pages designed to evaluate students' understanding of rounding numbers.

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.

Students learn about the concepts of accuracy and approximation as they pertain to robotics, gain insight into experimental accuracy, and learn how and when to estimate values that they measure. Students also explore sources of error...

Use this website to practice rounding decimals to the nearest whole numbers using a flash card format.

This tutorial-practice has students round decimals to the nearest whole numbers using a matching game format.

[Free Registration/Login Required] Students will learn the rounding method of estimating whole numbers. Assessment questions are included.

This resource covers whole number rounding where students can choose to round to the nearest tens to millions. After selecting parameters students are timed completing ten problems with instant feedback and an opportunity to practice again.

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

[Free Registration/Login Required] The teacher will use this lesson plan to review rounding, estimation, and computation.

Round each number to the nearest hundred. Select the correct answer of three choices. There are ten random questions.

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...

Students 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.

Students learn about estimation using a number line and rounding rules through this interactive web lesson.

In this interactive game, students round money to 5 cents, 10 cents, or 100 cents by dragging a puzzle piece the the correct answer and revealing a picture when finished.

As part of a larger site called "Getting started in Chemistry," this site examines significant figures and claims to teach the user "how to avoid telling lies with numbers."

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....

Estimate the product by rounding to the nearest ten before multiplying.

This audio book, narrated by author Mark Bishop, describes how to determine significant figures in chemical calculations. Many examples are given to help figure out how to round the answers. Also find links to tutorials and power points...

Practice rounding numbers to the nearest whole number or fraction with this interactive game. Check out this helpful resource!

Yest your knowledge of rounding numbers and decimals.

An engaging and fast-paced game from FunBrain, where players activate their knowledge of place value and rounding. Numbers range in difficulty from easy to hard. However, for those who are up for a more serious challenge, there's also a...

[Free Registration/Login Required] Use this flipchart as a review of adding, subtracting and rounding larger numbers. Practice after the concept has been taught.

Estimate numbers by rounding whole numbers and decimals.

This site explains how to estimate sums by rounding whole numbers. Games and exercises are provided to practice the skill.