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...
Unit Plan
AAA Math

Aaa Math: Addition of Decimals

For Students 4th - 5th Standards
This lesson explains how to add decimals of the tenths place value. Gives practice and games to work on this skill.
Activity
Homeschool Math

Homeschool Math: Add and Subtract Decimals: Practice Problems

For Students 4th - 5th
This lesson contains a variety of exercises for adding and subtracting decimals with up to two decimal digits,
Interactive
University of Waterloo (Canada)

Mathfrog: Decimal Mania Add or Subtract the Decimals

For Students 3rd - 5th Standards
Add or subtract by entering one digit in each box.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Expressing an Equivalent Decimal Ending in Zero to Thousandths

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The video describes how to add zeros as place holders at the end of a decimal to make an equivalent decimal out to the thousandths place value in this example.
Unknown Type
Mr. Martini's Classroom

Mr. Martini's Classroom: Decimal Addition Math Quiz

For Students 3rd - 5th Standards
Learners can test their ability to add decimals using this interactive, graded quiz.
Activity
Homeschool Math

Homeschool Math: Adding and Subtracting Decimals (One Decimal Digit)

For Students 4th - 5th
This is a complete lesson with instruction and a variety of exercises, teaching how to add and subtract decimals with one decimal digit (tenths).
Unknown Type
Khan Academy

Khan Academy: Adding Decimals #6

For Students 4th - 5th Standards
Practice adding whole numbers and decimals up to the hundredths place. Includes hints.
Unknown Type
Khan Academy

Khan Academy: Adding Decimals #5

For Students 4th - 5th Standards
Practice adding whole numbers and decimals up to the hundredths place. Includes hints.
Activity
Homeschool Math

Homeschool Math: Adding and Subtracting Decimals With Two Decimal Digits

For Students 4th - 5th
This is a complete lesson with instruction, word problems, and exercises about adding and subtracting decimals with two decimal digits (hundredths).
Website
Ducksters

Ducksters: Kids Math: Adding and Subtracting Decimals

For Students 3rd - 8th Standards
Kids learn how to add and subtract decimals by lining up the decimal point on this website. The site has example math problems.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Converting Integer and Fraction Sums Into Decimals

For Students 4th - 5th
[Free Registration/Login may be required to access all resource tools.] For this learning module, students must convert the sum of integers and fractions into a decimal total. Includes video demonstrating a sample problem [1:00] and a...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Predicting the Next Decimal in a Sequence

For Students 4th - 5th
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are presented with a sequence of decimal numbers and they must identify the pattern rule and predict the next decimal. Includes...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Determining Integer and Fraction Sums and Decimal Equivalency

For Students 4th - 5th Standards
[Free Registration/Login may be required to access all resource tools.] For this learning module, students must determine whether the sum of integers and fractions is equivalent to the given decimal total. Includes video demonstrating a...