Math: Decimals for Upper Elementary
These sites have many practice problems for adding, subtracting, multiplying, and dividing decimals. Play interactive games or try the online quizzes. There are links to eThemes Resources on rounding, fractions, and percentages.
教育标准
- 4,
- 5,
- 6,
- 7,
- 8
申请州标准
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Math.com: Lesson in Decimals
This lesson explains what decimals are and how they are used. The end of the lesson includes an interactive quiz for converting fractions to decimal form. NOTE: This site has pop-up ads and banner ads.
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Batting Averages
This site has you calculate batting averages to find out which player is the best. Click on "Hint" if you need help.
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Fraction to Decimal Conversion
This table shows the numbers for fractions and decimals. See how the numbers are related.
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Decimals
This tutorial covers the different uses of decimals and how to add and subtract them.
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Decimals, Whole Numbers, and Exponents
This tutorial site explains several examples of decimals and how to add, subtract, multiply, and divide them.
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FunBrain: Power Football
Pick the decimal skill you want to work on and play the game. NOTE: This site links to a site with discussion forums, and there is a pop-up ad.
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Quia: Decimal and Whole Number Jeopardy
Play this fun Jeopardy game to test your knowledge of decimals. This game deals with rounding decimals, comparing decimals, and more.
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Quia: Rounding Decimals/Whole Numbers
Here are three games for learning how to round decimals.
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Quia: Rags to Riches: Adding Decimals
Play this game to practice your skills at adding decimals. The game is in the style of "Who Wants to be a Millionaire."
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BBC: Multiply and Divide by 10, 100 and 1000
This site helps to develop skills in multiplying and dividing decimals by 10, 100, and 1000. Fact sheet, online quiz, and worksheet are included. NOTE: This site has a link that leads to a discussion board.
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Exploring Division of Decimals
This site uses a decimal square as an alternative way to explain multiplication and division of decimals.
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Equivalent Fractions, Decimals, and Mixed Numbers
Play a game to find equivalent decimals, fractions, and mixed numbers. Click on a pair of numbers that is equivalent.
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eThemes Resource: Math: Rounding
These sites include the rules for rounding whole numbers and decimal numbers. Includes many examples, plus online games and quizzes.
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eThemes Resource: Math: Fractions
These sites explain how to add, subtract, multiply, and divide fractions. There are several online tutorials and games. Topics include mixed numbers and simplifying fractions. Also includes some fraction word problems.
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eThemes Resource: Math: Percentages
These sites explain how to calculate percentages. Learn about the relationship among fractions, decimals, and percentages. Practice calculating sales prices and restaurant tips. There are many online quizzes and interactive games.
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