Discovery Education
Discovery Education: Web Math: How to Round a Number
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.
CK-12 Foundation
Ck 12: Elem Math: Arbitrary Digits Numbers Up to 100000
[Free Registration/Login may be required to access all resource tools.] Students practice making large and small numbers with whole numbers.
CK-12 Foundation
Ck 12: Elem Math: Calculating Quotients Numbers Up to 100000
[Free Registration/Login may be required to access all resource tools.] Students practice calculating quotients while attempting whole number place value problems.
CK-12 Foundation
Ck 12: Elem Math: One Step Conversions Involving Multiples of Ten
[Free Registration/Login may be required to access all resource tools.] Students practice converting numbers using place value.
CK-12 Foundation
Ck 12: Elem Math: Adding Decimals From the Thousandths Place to the Tens Place
[Free Registration/Login may be required to access all resource tools.] This mathematics resource is a video demonstrating addition with decimals to the thousandths place, followed by practice problems adding numbers with digits in the...
CK-12 Foundation
Ck 12: Elem Math: Rounding to the Nearest Decimal Place or the Tenths Place
[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to round numbers to the nearest tenths decimal place. [1:26]
CK-12 Foundation
Ck 12: Elem Math: Subtract Decimals From the Thousandths Place to the Tens Place
[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to subtract decimal numbers from the tens place to the thousandths decimal place. [0:47]
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.
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.
Cool Math
Coolmath: Coolmath4kids: Subtraction: Place Value Review
Reviews what place value is and how it is used in subtraction.
Cool Math
Coolmath: Coolmath4kids: Subtracting Numbers Within 100
Short tutorial showing how to subtract using two-digit numbers in tens and ones columns without regrouping.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Multiplying Decimals Whole Numbers
This website from The Math Page explains and defines how to multiply decimals. There is even a practice section at the very end of the lesson.
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...
Saddleback College
Algebra2go: Rounding Numbers Problem Sets
This resource has three problem sets to practice rounding whole numbers to 10's, 100's and so on, place. Select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all...
Khan Academy
Khan Academy: Rounding Decimals
In this exercise, students practice rounding decimals. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Round Whole Numbers
Practice rounding whole numbers to the nearest hundred or thousand. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Rounding Decimals Challenge
In this exercise, students practice rounding decimals. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Power of Ten
This website from The Math Page explains and defines basic arithmetic terms and place value concepts. There is even a practice section at the very end of the lesson.
Illustrative Mathematics
Illustrative Mathematics: 4.nbt Rounding to the Nearest 1000
The purpose of this task is for students to estimate the position of numbers less than 10,000 on the number line, to practice rounding, and to make the connection between rounding and location on the number line. Aligns with 4.NBT.A.3.
Illustrative Mathematics
Illustrative Mathematics: 3.nbt Rounding to 50 or 500
Students explore different rounding scenarios. Aligns with CCSS.Math.Content.3.NBT.A.1 Use place value understanding to round whole numbers to the nearest 10 or 100.
Illustrative Mathematics
Illustrative Mathematics: 3.nbt, 4.nbt Rounding to the Nearest 100 and 1000
This task builds off of the skill of rounding to the nearest ten and hundred in third grade. Aligns with CCSS.Math.Content.3.NBT.A.1 Use place value understanding to round whole numbers to the nearest 10 or 100.
Illustrative Mathematics
Illustrative Mathematics: 3.nbt Rounding to the Nearest Ten and Hundred
The purpose of this task is for students to practice rounding numbers to the nearest ten, connect the rules for rounding with location on the number line, and to introduce the idea of rounding to the nearest 100. Aligns with...