Real math help.
What is Place Value?
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Did you know numbers have place values? This tutorial introduces you to the term place value and shows you some of the most seen place values. Take a look!
Background Tutorials
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Use decimal notation for fractions with denominators 10 or 100.
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What are Decimals?
Have you ever looked at the price of something? It's usually given as a decimal! Decimals are a very helpful part of math and can be found in may places in the real world. Watch this tutorial to learn all about decimals!
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Convert a rational number to a decimal using long division; know that the decimal form of a rational number terminates in 0s or eventually repeats.
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What is a Terminating Decimal?
A terminating decimal is a decimal that ends. It's a decimal with a finite number of digits. Did you know that all terminating decimals can be rewritten as fractions? Watch this tutorial to learn about terminating decimals and see some examples!
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Further Exploration
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Use place value understanding to round decimals to any place.
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How Do You Round a Decimal to a Given Place Value?
Sometimes, decimals are so long that you need a way to estimate the value of the decimal. Other times, you may only need a certain amount of exactness to get your answer. This is where rounding decimals to a chosen place can be very helpful! Watch this tutorial to learn how to round a decimal to a chosen place.
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