Khan Academy: Multiplying Decimals: Multiplying a Decimal by a Power of 10

Youngsters respond to 10 problems that require them to calculate the products of the powers of 10 and write numbers in exponent form.

For this finding the products of decimals quiz worksheet, students solve computations and word problems. Students solve 14 problems.

In this exercise, students practice multiplying decimals. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

This video shows how to multiply decimals.

This video shows how to multiply two decimals.

This video shows how to multiply two decimals in the context of a word problem.

This video shows how to write a decimal in word form, using place value concepts. Practice problems are available. [3:31]

This video explains place value in decimal numbers. Practice problems are available. [4:00]

Find the product of numbers that have decimals. First, ignore the decimals and multiply the integers. Second, count the place values of the decimals for each value given. Third, add the values together. Fourth, place the decimal in the...

Powers of 10 are about moving the decimal around. The instructor illustrates how to move the decimal when it's ten percent or it's one percent. Once you understand this procedure you can do the mental math, in your head of course!