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Mr. Martini's Classroom

Mr. Martini's Classroom: Decimal Multiplication Math Quiz

For Students 3rd - 8th
Students can test their ability to multiply decimal tenths using this interactive quiz. They can choose to have their quiz graded or select new problems.
Website
Discovery Education

Discovery Education: Web Math: General Math

For Students 3rd - 8th
An extraordinary site that will help you with your math homework. Presented in a format that is both easy to understand and educational. Navigate through numerous instant-answer, self-help math solvers to help you figure out your math...
Activity
Math Fact Cafe

Math Fact Cafe

For Students Pre-K - 1st
This site provides math fact sheets and flashcards for parents and teachers. Access hundreds of pre-generated math sheets, or create custom sheets to meet your own special needs.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Moving the Decimal Point Multiplying by Powers of 10

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] For this learning module, students practice finding how many places to move the decimal point when multiplying by powers of 10. Includes video demonstrating a sample...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Decimal Multiplication and Addition Word Problems

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to solve word problems that involve the multiplication and addition of decimals. Includes video demonstrating a sample...
Interactive
Study Pad

Splash Learn: Decimal Arithmetic

For Students 5th Standards
[Free Registration/Login Required] This game provides practice in decimal arithmetic including addition, subtraction, multiplication, and division of decimals.
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Shmoop University

Shmoop: Fractions & Decimals: Adding & Subtracting Decimals

For Students 9th - 10th Standards
The mathematics notes investigate how to add and subtract decimals. Examples and practice problems with solutions are included.
Unit Plan
Khan Academy

Khan Academy: Multiply and Divide Decimals by 10

For Students 4th - 6th Standards
Practice multiplying and dividing decimal numbers by 10. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Multiply and Divide Decimals by 10, 100, and 1000

For Students 4th - 6th
Practice multiplying and dividing decimals by 10, 100, and 1000. For example, divide 31.4 by 100 to get 0.314. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
Math Is Fun

Math Is Fun: Convert Decimals to Fractions

For Students 3rd - 8th
Learn how to convert decimals to fractions by viewing simple steps and several examples. At the bottom of this page, follow links to more on fractions on decimals: Introduction to Decimals," "Converting Fractions to Decimals,"...
Unit Plan
Khan Academy

Khan Academy: Understanding Moving the Decimal

For Students 4th - 6th Standards
Give the number of tens a number is being multiplied or divided by when the decimal is moved to the left or right. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Khan Academy

Khan Academy: Adding Decimals: Thousandths

For Students 6th - 8th Standards
In this exercise, students practice adding decimals in the thousandths place. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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Khan Academy

Khan Academy: Dividing Decimals: Thousandths

For Students 6th - 8th Standards
In this exercise, students practice dividing decimals in the thousandths place. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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Khan Academy

Khan Academy: Subtracting Decimals: Thousandths

For Students 6th - 8th Standards
In this exercise, students practice subtracting decimals. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Unit Plan
Khan Academy

Khan Academy: One Step Multiplication/division Equations: Fractions, Decimals

For Students 5th - 7th
Practice solving equations in one step by multiplying or dividing a number from both sides. These problems involve decimals and fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
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Math Is Fun

Math Is Fun: Adding Decimals

For Students 3rd - 8th Standards
Learn to add decimals by viewing simple steps and examples. Follow links to decimal worksheets, as well as steps for subtracting, multiplying, and dividing decimals.
Website
Other

Mathpower: Math Fundamental Assignments

For Students 9th - 10th Standards
Math variety of concepts, this colorful website is sure to give your students the chance show what they know. Concepts covered include rounding, division with decimals, order of operations, ratio, percent, multiplication, and division of...
Whiteboard
SMART Technologies

Smart: Foundational Math Concepts for Elementary Ages

For Teachers K - 1st Standards
Practice everyday math skills such as adding, subtracting, multiplying, dividing, place value, counting money, telling time, fractions, decimals, and more.
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Shmoop University

Shmoop: Fractions & Decimals: Multiplying Fractions and Mixed Numbers

For Students 9th - 10th Standards
The mathematics resource explores how to multiply fractions and mixed numbers. Students examine the topics through class notes and examples. Practice problems with solutions are available to check for comprehension of the concepts.
Activity
Hopelink

Hopelink: Teaching Percentages

For Teachers 9th - 10th
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.
Activity
OnlineMathLearning.com

Online Math Learning: Multiplying and Dividing Positive & Negative Decimals

For Students 7th
An interactive worksheet for practice in the multiplication and division of decimals with positive and negative signs.
Activity
Discovery Education

Discovery Education: Web Math: Convert Regular Decimals to Scientific Notation

For Students 9th - 10th Standards
This site gives an answer and explanation for any conversion requested by the user.
Activity
University of Cambridge

University of Cambridge: Nrich: The Magic Number and the Hepta Tree

For Students 3rd - 8th Standards
Use your calculator to help you solve this challenge at this one page website. You can check your solution with only one click of the mouse.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: N Rn Sums of Rational and Irrational Numbers

For Teachers 9th - 10th Standards
The goal of this task is to examine sums and products of rational and irrational numbers. One important property of rational numbers is that their decimals always terminate or repeat: using a slightly different formulation, a rational...