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Interactive
Other

Interactive Learning Sites for Education: Decimals

For Students 4th - 6th
A large collection of links to interactive activities and games on the topic of decimals.
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Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Rounding Decimals

For Students 5th - 6th Standards
Find a quick, concise explanation of how to round decimals. An example is given and clearly explained.
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Website
PBS

Pbs Learning Media: How Many Rails for the Detour?

For Students 6th - 8th
The CyberSquad adds decimals to figure out how many rails they need to build a detour that will help them go around a mountain in this Cyberchase video segment.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Percents Are Ratios

For Students 3rd - 8th Standards
This Math Page tutorial explains how percents are ratios and then features a practice exercise.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Multiplying and Dividing by Powers of 10: The Meaning of Percent

For Students 3rd - 8th Standards
This excellent math resource explains and defines the meaning of percent. Multiplying and dividing by a power of 10 is incorporated as a preview to understanding scientific notation.
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Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Add Whole Numbers, Add Decimals

For Students 3rd - 8th Standards
This website explains and defines adding whole numbers and decimals. Content explores addition with regrouping and how to align numbers in a written calculation. There are even practice problems at the end of the lesson.
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Unit Plan
Khan Academy

Khan Academy: Practice: Decimals in Expanded Form

For Students 5th - 6th Standards
Questions are provided to review decimals in expanded form. Immediate feedback is given and hints or a video are available if needed.
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Handout
Khan Academy

Khan Academy: Practice: Decimals in Expanded Form Review

For Students 5th - 6th Standards
Review how to write decimals in expanded form, then attempt some practice problems.
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Interactive
Calculator Soup

Calculator Soup: Ratio Simplifier

For Students 9th - 10th
Use this calculator to simplify ratios of the form A : B. A or B can be whole numbers, integers, decimal numbers, fractions or mixed numbers. They can be different types, for example, one fraction and one decimal. The ratio values can be...
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Unknown Type
Application Magazine

Aplicaciones: Examen De Decimals No. 1

For Students 3rd - 8th Standards
Take this test to test your knowledge of: decimal place value, addition and subtraction of decimals. Final score will be given at the end.
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Unknown Type
Math Slice

Math Slice: Rounding: Math Worksheets

For Students 3rd - 7th Standards
This tool allows you to create worksheets where students must round whole numbers or decimal numbers to various place value positions.
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Interactive
Calculator Soup

Calculator Soup: Rounding Numbers Calculator

For Students 9th - 10th
Rounding calculator teaches how to round numbers up or down to any decimal place. Choose ones to round a number to the nearest dollar. Choose hundredths to round an amount to the nearest cent.
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Interactive
Calculator Soup

Calculator Soup: Round to Nearest Multiple Calculator

For Students 9th - 10th
Use this rounding calculator to round a number to the nearest multiple. You can round a number up or down to the nearest 2, 4, 5, 10, 50, etc. You can also round to the nearest tenth, hundredth, thousandth, etc. multiple in a decimal place.
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Unit Plan
Study Ladder

Studyladder: Multiplying Decimals by 10

For Students 4th - 5th Standards
Studyladder:Multiplying decimals by 10 is an interactive learning activity.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Numbers in Expanded Form

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Express decimals in expanded form.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Expressing Hundredths as Decimals

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems involving expressing hundredths as decimals.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Expressing Tenths as Decimals

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview and attempt practice problems involving expressing tenths as decimals.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Expressing Thousandths as Decimals

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems involving expressing thousandths as decimals.
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Unit Plan
Sophia Learning

Sophia: Thousandths

For Students 6th - 7th
The thousandths place is explored in this video tutorial. Students watch a lesson that includes a detailed example.
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Unknown Type
Common Core Sheets

Common Core Sheets: Number and Operations in Base Ten 5.nbt.7 Worksheets

For Teachers 5th Standards
Teachers can assess students' knowledge of adding, subtracting, multiplying, and dividing decimals to hundredths with these printable worksheets. You can even create your own worksheet or flashcards.
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Unknown Type
Khan Academy

Khan Academy: Multiplying and Dividing Decimals by 10

For Students 3rd - 5th Standards
In this exercise, students practice multiplying and dividing decimals by 10. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Identifying Decimals on a Number Line to Hundredths

For Students 4th - 5th
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to state the decimals to the hundredths place for given locations on a number line. Includes video demonstrating a...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Identifying Decimals on a Number Line to Tenths

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to state the decimals to the tenths place for given locations on a number line. Includes video demonstrating a sample...
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Graphic
Curated OER

Science Kids: Science Images: Basic Calculator

For Students 9th - 10th
This photo shows a basic calculator sitting on a desk. The value of Pi is written to five decimal places on the screen.

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