Math Student Help

Your Best Friend playing Decimals (acoustic) on 6/5/09 at Hot Topic in Saginaw, MI

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This video covers sovling multi-step equations that contain decimals. It includes three examples.

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This video contains numerous examples of how to convert percents into fractions and decimals.

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Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/roundingdecimals.php Students learn to round a decimal to a given place using the following steps. First, find the digit in the rounding place. Next, look at the digit to the right of the rounding place. If the digit to the right of the rounding place is less than 5, round down, which means that the digit in the rounding place stays the same, and all digits to the right of the place become zero. If the digit to the right of the rounding place is greater than 5, round up, which means add 1 to the digit in the rounding place, and all digits to the right of the rounding place become zero.

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Access full lesson containing this video at: http://www.yourteacher.com/algebra1/decimalequations.php Students learn that if one or more decimals appear in an equation, the first step is to get rid of the decimals by multiplying both sides of the equation by the appropriate power of 10. For example, if the equation reads x + .7 = .9x — 3, since both decimals are taken to the tenths place, the decimals can be removed by multiplying both sides of the equation by 10, to get 10x + 7 = 9x - 30. Note that all solutions in this lesson are integers.

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Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/addingdecimals.php Students learn to add decimals by first lining up the decimal points, then adding the numbers by column. For example, to add 14.2 + 2.86, first line up the decimal points, then add the digits in the hundredths column, to get 0 + 6, or 6, then add the digits in the tenths column, to get 2 + 8, or 10, so write a 0 in the tenths column and carry the 1 to the units column, then add the digits in units column, to get 1 + 4 + 2, or 7, then add the digits in the tens column, to get 1. So 14.2 + 2.86 = 17.06.

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Arithmetic Basics: Dividing Decimals. In this video, I give the basic idea of how I divide numbers involving decimals and do 3 examples.
For more free math videos, visit http://JustMathTutoring.com

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Arithmetic Basics: Multiplying Decimals. In this video, I do three examples of multiplying numbers when decimals are present!
For more free math videos, visit http://JustMathTutoring.com

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Mathcast on how to “Round a Decimal”. Features 6th graders, “bob” and “paul”. From Mathtrain.com with Mr. Marcos at Lincoln Middle School in Santa Monica, CA.

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Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/comparingdecimals.php Students learn to compare decimals by first lining up the decimals, then comparing numbers place-by-place, starting on the left. For example, to compare 17.456 and 17.501, the 1’s in the tens place are the same, and the 7’s in the units place are the same. However, in the tenths place,

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