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Interactive
Calculator Soup

Calculator Soup: Odds Probability Calculator

For Students 9th - 10th
Convert stated odds to a decimal value of probability and a percentage value of winning and losing. This calculator will convert "odds for winning" an event or "odds against winning" an event into percentage chances of both winning and...
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Interactive
Calculator Soup

Calculator Soup: Cubic Yards Calculator

For Students 9th - 10th
Use this calculator to calculate cubic yards volume for a variety of different areas. Enter measurements in US units or metric units. Calculate volume from your measurements in inches (in), feet (ft), yards (yd), centimeters (cm), or...
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Subtracting Whole Numbers and Decimals

For Students 3rd - 8th Standards
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.
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Unknown Type
Khan Academy

Khan Academy: Multiplying and Dividing by Powers of 10

For Students 3rd - 5th Standards
In this exercise, students practice multiplying and dividing by powers of 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: Arithmetic: Decimals in Words

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Understand how to read and write decimals to the ten-thousandths place.
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Unknown Type
Khan Academy

Khan Academy: Multiplying and Dividing Decimals by 10, 100, and 1000

For Students 3rd - 5th Standards
In this exercise, students practice multiplying and dividing decimals by 10, 100, and 1000. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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Handout
Homeschool Math

Homeschool Math: Multiply and Divide Decimals by 10, 100, and 1000

For Students 5th - 6th Standards
Lesson includes a video & examples showing the common shortcut for multiplying & dividing decimals by powers of ten. [7:59] Provides exercises and word problems for practice.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 5.nbt Are These Equivalent to 9.52?

For Teachers 5th
Presents six sets of numbers in various formats and students are asked to determine which ones are equivalent to the decimal number 9.52 and to explain their reasoning. Aligns with 5.NBT.A and 5.NBT.A.3.
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Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Really Big and Small Numbers

For Students 9th - 10th Standards
Find a quick, concise explanation of the names of large numbers all listed in a table. Other interesting tidbits of information about the names of larger numbers are also included. Names of decimals numbers are also included at the end...
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Unknown Type
Illustrative Mathematics

Illustrative Mathematics: 4.nf How Many Tenths and Hundredths?

For Teachers 3rd - 5th Standards
Finish the equations to make true statements. The student must really think to encode the quantity in positional notation. Aligns with 4.NF.C.5.
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Study Guide
Khan Academy

Khan Academy: Naming and Ordering Numbers Lesson

For Students 1st - 9th
Get ready for your Praxis Core Math test with this lesson over naming and ordering numbers. You will review the skills being tested for this topic and complete practice problems.
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Activity
AAA Math

Aaa Math: Subtracting Decimals

For Students 9th - 10th
This personal site explains how to subtract decimals of the tenths place value. Includes games to practice this skill.
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Interactive
Calculator Soup

Calculator Soup: Percentage Calculator

For Students 9th - 10th
Find a percentage or work out the percentage given numbers and percent values. Use percent formulas to figure out percentages and unknowns in equations. Add or subtract a percentage from a number or solve the equations.
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Interactive
Calculator Soup

Calculator Soup: Percent to Fraction Calculator

For Students 9th - 10th
This online calculator converts a percent to a fraction. If the percent value is greater than 100% it is converted into a mixed number fraction. Enter percents to convert them into fractions. The number you enter can also have decimal...
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Unknown Type
NumberNut

Number Nut: Subtracting Money Under Ten Dollars

For Students 1st - 4th Standards
Find the difference between two money amounts. Values are expressed in decimal form, not coins. There are ten random questions.
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Unknown Type
Application Magazine

Aplicaciones: Numeros Decimales

For Students 3rd - 8th Standards
Test your knowledge of decimal numbers. Final score will be given in each section.
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Unknown Type
Application Magazine

Aplicaciones: Transformaciones

For Students 3rd - 8th Standards
Find out how well you know the decimal system. Final score will be given in each section.
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Whiteboard
ClassFlow

Class Flow: Decimals

For Teachers 4th - 5th
[Free Registration/Login Required] This flipchart was created to introduce decimal place value, to fourth graders. The assessment component is only available to educators having access to study island.
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Unit Plan
CK-12 Foundation

Ck 12: Measurement: Metric Unit Length Conversions

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Convert metric units of length and round to a given place value.
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Interactive
Math Is Fun

Math Is Fun: Compound Interest Calculator

For Students 9th - 10th
A calculator based on the compound interest formula that can be used to determine the Present Value, the Future Value, the Interest Rate, or the Number of Periods. You can select the type of compounding, the effective annual rate, and...
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Unknown Type
McGraw Hill

Glencoe: Self Check Quizzes 1 Rounding Decimals

For Students 5th - 6th
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...
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Unit Plan
CK-12 Foundation

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

For Students 4th - 5th Standards
[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...
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Estimation of Square Roots

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Approximate square roots to the nearest given decimal place
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Handout
Math Is Fun

Math Is Fun: E (Euler's Number)

For Students 9th - 10th
Explains what Euler's Number is, its significance, and the formula used to calculate this irrational number. Gives memory tricks for remembering the value of e to 10 or 15 decimal places. Looks at some interesting properties of e and how...

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