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Understand the difference between fractions and ratios

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In this lesson you will learn the differences between fractions and ratios by examining the definition of each using diagrams.

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Finding the GCF and LCM using the cake method.

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Finding the GCF and LCM using the cake method.

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Finding the least (lowest) common multiple (LCM) using the upside down birthday cake method

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You can find the least common multiple (lowest common multiple) simply and quickly by using the upside down birthday cake method.

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Sal finds the LCM (least common multiple) of 12 and 36, and of 12 and 18. He shows how to do that using the prime factorization method, which is a just great!

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Finding the GCF using the "Ladder" Method

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WatchKnowLearn - Free K-12 educational videos

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Free K-12 educational videos ... organized. Tens of thousands of excellent, educational videos in a huge, intuitive directory. Organized, reviewed, rated, and described by teachers. Ideal as a supplement to a curriculum or for independent study. Designed for teachers, students, parents, homeschoolers, educators ... and all life-long learners!

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Understand relationships between digits and their place value

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In this lesson, you will learn about the relationships between digits and their place value by using base ten blocks and a place value chart.

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Topic 5 Ratio, Percent, and Measurement Conversion Videos

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Topic 5 Ratio, Percent, and Measurement Conversion Videos

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Topic 5 Converting fractions to decimals and percents

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Topic 5 Converting fractions to decimals and percents

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Fraction to decimal and percent, step by step, example. For all free math videos visit http://Mathmeeting.com.

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Adding and subtracting decimals

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I created this video using my Logitech QuickCam software

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Introduction to multiplying decimals | Decimals | Pre-Algebra | Khan Academy

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Dividing Decimals

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Percent word problem. 35% of what number is 14? Visit http://mathmeeting.com for more examples.

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Finding the Percent of a Nmuber

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Math Antics - Finding A Percent Of A Number