Real math help.
How Do You Multiply a Decimal by a Whole Number?
Note:
If you want to multiply a decimal by a whole number, just ignore the decimal point and multiply like normal! Then, bring the decimal point back for the answer. This tutorial shows you the entire process step-by-step.
Background Tutorials
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Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
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How Do You Multiply a Two-Digit Number by a One-Digit Number?
Multiplication is a building block of math, so it's important to be comfortable with it! This tutorial gives you practice multiplying a one digit number by a two digit number.
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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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Further Exploration
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Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
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How Do You Multiply a Decimal by a Whole Number Using Estimation to Place the Decimal?
When you multiply a decimal and a whole number, removing the decimal point can make multiplying easier, but where does the decimal point go when you want to get your answer? In this tutorial, you'll see how to estimate the location of the decimal point after you multiply!
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Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.
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How Do You Multiply Decimals?
Doing math with paper and pencil can come in real handy, so make sure you're comfortable multiplying decimals by hand. After all, you don't want the calculator to be a crutch!
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