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Instructional Video1:51
Curated OER

Dividing Decimals 2.1

For Students 5th - 7th
Occasionally, in mathematics, there are "short cuts" one can take. Sal explains a quick way to divide decimals numbers. He demonstrates that in certain cases, simply shifting the decimal point to the left will result in a correct answer.
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Instructional Video3:41
Curated OER

How Do You Turn a Decimal Into a Percent?

For Teachers 6th - 8th
Multiply a decimal number by 100 to get a percent number. Or take a shortcut and merely move the decimal point two places to the right. But don't forget to write the percent sign after you move the decimal. Otherwise it's just a number...
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Instructional Video7:06
Corbett Maths

Multiplication by 10, 100 and 1000

For Students 3rd - 5th Standards
Make multiplication seem 10 times simpler. Viewers of a short educational video see how to multiply values by 10, 100, and 1,000 by moving the decimal point. Examples in the video cover both whole numbers and decimals.
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Instructional Video5:39
Curated OER

How Do You Turn a Percent Into a Fraction?

For Teachers 6th - 8th
Change decimals to percent, fractions to decimals, percentages to fractions, etc. Remember how to do all of these conversions? It gets so confusing. Move the decimal to the right? Make it a fraction over 100? Multiply by? Oh my! So watch...