PBS
Pbs: Logical Leaps: Fractions, Mixed Numbers, and Decimals on the Number Line
In this interactive, students use logic to solve three riddles involving a frog jumping contest and then place the contestants' jumps at the correct points on the number line. Numbers are randomized so that the frogs' placements on the...
University of Texas
Inside Mathematics: Decimals [Pdf]
This task challenges a student to use knowledge of place value system to represent and compare rational numbers.
CK-12 Foundation
Ck 12: Elem Math: Expressing Decimals as Fractions Using Place Value
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to convert a decimal into a fraction by using the place value positions of digits to generate fractional parts. Includes...
Math Is Fun
Math Is Fun: Decimals
A good introduction to decimals, which includes a definition of place value and several examples of decimal numbers. Follow links at the bottom of this page to access decimal worksheets as well as information on rounding numbers, adding...
McGraw Hill
Glencoe: Self Check Quizzes 1 Rounding Decimals
Use Glencoe's randomly generated self-checking quiz to test your knowledge of rounding decimals. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It" button...
Other
Active Maths Limited: Decimal Number Lines: Whiteboard Resources
This is an excellent resource for teaching and learning about decimals. Three different interactive number lines help students visualize units in tenths and hundredths and decimals.
CK-12 Foundation
Ck 12: Elem Math: Decomposing Decimals Into Place Values to Thousandths
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine which digit is in the thousandths place value by breaking down every digit in the number according to the place value. The video...
CK-12 Foundation
Ck 12: Elem Math: Decomposing Decimals Into Place Values to Tenths
[Free Registration/Login may be required to access all resource tools.] The video discusses how to identify place value of digits in the ones and tenths place. The video is followed by practice problems to assess student understanding of...
Homeschool Math
Homeschool Math: Decimal Place Value: One Decimal Digit
This is a complete lesson with instruction and varied exercises, explaining how the place value system works with decimals that have one decimal digit, and how to write such decimals in expanded form.
Lesson Tutor
Lesson Tutor: An Introduction to Decimals
A complete introduction to the decimal system is provided here. Topics included in the discussion/lesson plan are: the meaning of and need for decimals, a place value chart, tips to help remember how and when to move the decimal point,...
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Decimals, Expressions, Operations
Twenty problems presented on the topics: working with expressions, using the distributive property, decimal place value and decimal operations. They are given with each step to the solution cleverly revealed one at a time. You can work...
PBS
Pbs Learning Media: Logical Leaps: Fractions, Mixed Numbers, and Decimals on the Number Line
In this interactive, students use logic to solve three riddles involving a frog jumping contest and then place the contestants' jumps at the correct points on the number line. Numbers are randomized so that the frogs' placements on the...
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.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Subtracting Whole Numbers and Decimals
If you are looking for a website that explains and defines subtraction with decimals you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.4 Worksheets
Teachers can assess students' knowledge of place value with these printable worksheets. You can even create your own worksheet or flashcards.
Shmoop University
Shmoop: Fractions & Decimals: Place Value & Naming Decimals
The mathematics notes investigate decimal place value. Examples and practice problems with solutions are included.
CK-12 Foundation
Ck 12: Elem Math: Identifying Decimals on a Number Line to Thousandths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to state the decimals to the thousandths place for given locations on a number line. Includes video demonstrating a...
Khan Academy
Khan Academy: Regroup Decimals
Regroup numbers in each place value (e.g., regroup 1 ten as 10 ones) to express decimals in different ways. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Study Pad
Splash Learn: Add Decimals Using Models
[Free Registration/Login Required] This fun decimal addition worksheet introduces students to the world of operations with decimal numbers. Fifth graders use models to visualize the addition of numbers in the tenths and hundredths places...
Khan Academy
Khan Academy: Compare Decimals Challenge
Practice decimal comparison problems that stretch your place value understanding. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Doina Popovici
Math Play: Place Value Millionaire Game
This is an online Millionaire-style game for students to practice reading and writing decimals.
Other
Interactive Learning Sites for Education: Decimals
A large collection of links to interactive activities and games on the topic of decimals.
Khan Academy
Khan Academy: Round Decimals Word Problems
Solve word problems by rounding decimals Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Adding Decimals: Tenths
Add two numbers that are either whole numbers or written to the tenths place value. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.