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.
Sophia Learning
Sophia: Expanded Place Value of Decimals
This lesson explains that each digit in a decimal number has a value related to its positional representation.
Alabama Learning Exchange
Alex: Carlos the Centipede Is Adding Decimals!
In this instructional activity, young scholars will work in collaborative/cooperative groups to understand adding decimals. Students will use decimal grids to represent the sum of decimals. Emphasis is on using place-value, lining up the...
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...
Illustrative Mathematics
Illustrative Mathematics: Multiplying Decimals by 10
The purpose of this task is to help students understand and explain why multiplying a decimal number by 10 shifts all the digits one place to the left. This understanding builds on work around place-value that students have done with...
Alabama Learning Exchange
Alex: Carlos the Centipede Is Subtracting Decimals!
In this activity, young scholars will work in collaborative/cooperative groups to understand subtracting decimals. Students will use decimal grids to represent the difference of decimals. Emphasis is on using place-value, lining up the...
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.
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 instructional activity or flashcards.
CK-12 Foundation
Ck 12: Elem Math: Identifying Equivalent Decimals Ending in Zero
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to identify which decimal numbers are equivalent. To do this, they must understand how zero is used as a placeholder....
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Make a Ten
An interactive simulation that teaches about place value, addition, and subtraction by adding, breaking apart, and combining numbers by making tens and focusing on place value. This simulation can either be downloaded or played online...
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.
AAA Math
Aaa Math: Decimals Ten Thousandths
This lesson explains how to identify decimals of the ten-thousandths place value. Includes games to practice this skill.
AAA Math
Aaa Math: Addition of Decimals
This lesson explains how to add decimals of the tenths place value. Gives practice and games to work on this skill.
CK-12 Foundation
Ck 12: Arithmetic: Combinations of Decimal Money Amounts
[Free Registration/Login may be required to access all resource tools.] Write amounts of money as decimals.
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...
CK-12 Foundation
Ck 12: Elem Math: Create the Greatest or Least Decimal Value From Given Numbers
[Free Registration/Login may be required to access all resource tools.] A practice quiz where students must make the greatest or least decimal number with the digits they are given.
CK-12 Foundation
Ck 12: Arithmetic: Decimal Comparisons With Rounding
[Free Registration/Login may be required to access all resource tools.] Compare and order decimals by rounding the decimals
CK-12 Foundation
Ck 12: Elem Math: Determining Which Decimal Falls Between Two Given Decimals
[Free Registration/Login may be required to access all resource tools.] For this learning module, students compare decimal numbers to see which one is between the two that they are given. Includes video demonstrating a sample problem...
Quia
Ixl Learning: What Is a Decimal?
Brush up on your math skills pertaining to decimals then try some practice problems to test your understanding.
ClassFlow
Class Flow: Decimal Basics Review
[Free Registration/Login Required] In this flipchart students review place value, rounding, and estimation.
CK-12 Foundation
Ck 12: Elem Math: Maximum or Minimum Possible Value of a Rounded Decimal
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are told the number of digits after a decimal point and the decimal's value when rounded. They must identify the maximum and the...
Alabama Learning Exchange
Alex: Decimal War
Students will use base 10 manipulatives to build models of decimal numbers. Students will compare decimal numbers. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone...
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,...