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Interactive
Visual Fractions

Visual Fractions: Platform Scale Addition

For Students 3rd - 8th
Weigh five little creatures on a metric scale, and add to find their total mass to the hundredths place as each one joins the group. A timer calculates your speed of computation.
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Unknown Type
That Quiz

That Quiz: Practice Test: Fractions

For Students 9th - 10th
This resource allows users to test their knowledge of fractions. Express fractions, mixed fractions, decimals, percents and ratios in lowest terms.
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Unknown Type
That Quiz

That Quiz: Practice Test: Inequlity

For Students 9th - 10th
This resource allows users to test their knowledge of inequalities and using fractions.
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Unknown Type
Math Slice

Math Slice: Online Mathematics Practice (Mock) Tests for Grades 4 Through 5

For Students 3rd - 5th Standards
A collection of mock math tests, designed for grades 3-5, modeled after portions of standardized tests.
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Lesson Plan
Utah Education Network

Uen: Understanding Decimals

For Teachers 6th
This math game will help students understand the connection between fractions and decimals. Students will use dice, a recording sheet, and their number sense as they find equivalent fractions from decimals. During the other part of the...
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Activity
Purple Math

Purplemath: Converting Between Decimals, Fractions, and Percents

For Students 9th - 10th
Scroll down to just below the middle of the lesson for an in-depth lesson on converting fractions to percents. Works through numerous examples step by step and shows what happens when the "decimal expansion" doesn't end when converting.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Fractions Into Decimals

For Students 3rd - 8th
This Math Page tutorial explains how to change a fraction to a decimal and features a practice section at the end of the lesson.
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Activity
Education Development Center

Tune in to Learning: Multiple Percents

For Students 9th - 10th Standards
Have you ever seen an item that you wanted on sale for 15% of its original price? Have you tried to figure out what the sale price would be? Using this interactive lesson from T.V. 411, you can learn to calculate discounts with percentages.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Rounding to Tenths and Hundredths

For Students 4th - 8th Standards
The purpose of this task is for students to use the position of a number on the number line to round the number without knowing its exact value. Though this task deals most directly with rounding, it also requires students to understand...
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Lesson Plan
Alabama Learning Exchange

Alex: Lining Up the Decimals

For Teachers 4th - 5th Standards
This instructional activity provides a chance for the students to order decimals from least to greatest and greatest to least. The numbers are based on a student's ability. This lesson plan was created as a result of the Girls Engaged in...
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Lesson Tutor

Lesson Tutor: Comparing Decimals

For Students 4th - 6th Standards
This site is an online lesson plan and practice problems for students learning how to compare two decimal values are provided here. A detailed explanation of both the methods and the practice questions are provided for easy understanding.
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Interactive
Arcademics

Arcademics: Puppy Pull Decimal Words

For Students 4th - 5th
Determine the correct decimal value based upon the written form to have your puppy tug the rope harder.
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Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: The Meaning of Decimals

For Students 3rd - 5th Standards
This website from The Math Page explains and defines decimals.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Dividing Decimals

For Students 3rd - 8th
This website from The Math Page explains and defines how to divide decimals. There is even a practice section at the very end of the lesson.
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Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Percent of a Number

For Students 3rd - 8th
This Math Page tutorial explains how to find the percent of a number and features a practice to check comprehension.
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Activity
National Institute of Educational Technologies and Teacher Training (Spain)

Ministerio De Educacion: Calculo Mental Todo Terreno

For Students 3rd - 5th Standards
Practice your mental math with this application by finding the sum of two: whole numbers, integers, decimals or fractions. You can choose two different levels of difficulty.
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Interactive
Other

Visnos: Fraction Wall

For Students Pre-K - 1st Standards
Interactive fraction bars allow practice with mixed and equivalent fractions, decimals, and percents. Use Safari and/or Chrome browser.
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Interactive
Cool Math

Coolmath: Coolmath4kids: Puppy Pull Decimals

For Students 4th - 6th
Win the tug of war while practicing converting fractions to decimals!
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Activity
TOPS Learning Systems

Top Science: Decimal Bounce [Pdf]

For Students 5th - 7th Standards
An activity where students learn the meanings of metric prefixes, and how to use them with decimal numbers and with different units of measurement.
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Unit Plan
Lesson Tutor

Lesson Tutor: Addition and Subtraction of Decimals

For Students 4th - 6th Standards
This site is an online lesson plan and practice problems for students learning how to add and subtract two decimal values are provided here. Detailed explanation of both the methods and the practice questions are provided for easy...
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Unit Plan
Lesson Tutor

Lesson Tutor: An Introduction to Decimals

For Students 4th - 6th Standards
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,...
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Unknown Type
Math Is Fun

Math Is Fun: Decimal Worksheets

For Students 4th - 5th
A collection of worksheets covering conversion and operations involving decimals.
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eBook
Math Planet

Math Planet: Calculating With Decimals and Fractions

For Students 9th - 10th Standards
Gain an understanding of how to calculate with decimals and fractions by viewing an example and a video lesson.
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Interactive
Fun Brain

Fun Brain: Place Value Puzzler

For Students 1st - 5th Standards
An engaging and fast-paced game from FunBrain, where players activate their knowledge of place value and rounding. Numbers range in difficulty from easy to hard. However, for those who are up for a more serious challenge, there's also a...