K-5 Math Teaching Resources
K 5 Math Teaching Resources: Round to the Nearest Hundred [Pdf]
Students play a card game with a partner to practice rounding numbers to the nearest hundred.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Round to the Nearest Ten [Pdf]
Students will play a game using a deck of cards to further understanding of rounding to ten.
ClassFlow
Class Flow: Rounding Numbers
[Free Registration/Login Required] Using a number-line, students will round numbers to the nearest whole up to the nearest thousands. Activote assessment is included along with two practice opportunities.
AAA Math
Aaa Math: Rounding Numbers to the Nearest Ten
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.
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...
AAA Math
Aaa Math: Estimating a Sum by Rounding
This site explains how to estimate sums of whole numbers. Gives practice and games to practice this skill.
AAA Math
Aaa Math: Estimation Rounding
This site explains how to round whole numbers. Gives problems and games to practice this skill.
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.
Khan Academy
Khan Academy: Round Decimals
Round decimals and whole numbers to the nearest thousand, hundred, ten, one, tenth, or hundredth. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
University of California
University of Calilfornia: Significant Figures Ii
This site from the University of California provides a lengthy and intelligent discussion of sig figs, absolute and relative precision, accuracy, precision in calculations, rounding off, and the whole shooting match of how we report what...
Hopelink
Hopelink: Teaching Percentages
Students can brush up on percentage skills with this lesson and calculate percentages using the "Percent Tricks method." For students to successfully use this method, they must have the ability to multiply and divide whole numbers.
Quia
Quia: Math Journey
In this online game London is your starting place! This game lets you practice addition, subtraction, multiplication, division and rounding as you "Travel," around the world. You can also choose the level of difficulty
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.
ClassFlow
Class Flow: Number Sense Related to Division
[Free Registration/Login Required] This flipchart introduces divisibility, primes and composites, averages, and estimating quotients.
Teaching Treasures Publications
Teaching Treasures: Year Eight Nine Math (Page 1)
Review a variety of number sense skills using this interactive worksheet. Concepts include greatest common factor, lowest common multiple, rounding to the nearest thousandth, and determining percent. Answers can be checked immediately...
Fun Brain
Fun Brain: Place Value Puzzler
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...
AAA Math
Aaa Math: Consumer Math
From basics such as adding and subtracting money, converting coins, and making change to more advanced topics such as sales tax and simple interest, this interactive tutorial offers help with consumer math issues.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Quotients Using Zero Placeholders
[Free Registration/Login may be required to access all resource tools.] Divide decimals by whole numbers using zero placeholders.
Khan Academy
Khan Academy: Place Value When Multiplying and Dividing by 10
Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
AAA Math
Aaa Math: Round to Nearest Thousand
This site explains how to round whole numbers to the nearest thousand. Gives practice and games to master this skill.
AAA Math
Aaa Math: Round to Nearest Hundred Thousand
This site explains how to round whole numbers to the nearest hundred thousand. Gives practice and games to practice this skill which are fun and helpful on the subject.
AAA Math
Aaa Math: Round to Nearest Ten Thousand
This site explains how to round whole numbers to the nearest ten thousand. Gives exercises and games to practice this skill.
AAA Math
Aaa Math: Front End Estimation
Front-end estimation is explained and demonstrated with an online game at this AAA Math lesson.