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User: yourteachermathhelp

Watch Video on Dividing Decimals - Pre Algebra Help Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/dividingdecimals.php Students learn to divide a decimal by a decimal by first multiplying both decimals by the power of 10 that changes the second decimal to a whole number. For example, to divide 0.16 by 0.8, first multiply both decimals by 10, to get 1.6 8. Next, divide the decimal by the whole number in the same way that one would divide a whole number by a whole number (using long division). However, at the end of the problem, the decimal point is brought straight up from the decimal that is inside the division symbol to the answer that is written on top of the division symbol. Tags: dividing decimal by numbers division long divide

User: yourteachermathhelp

Watch Video on Lowest Common Denominator - Pre Algebra Help Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/leastcommondenominator.php Students learn to add unlike fractions by first finding a common denominator. For example, to add 1/2 + 1/3, first find the common denominator of 2 and 3, or the Least Common Multiple of 2 and 3, which is 6. Then multiply the numerator and denominator of 1/2 by 3, to get the equivalent fraction 3/6, and multiply the numerator and denominator of 1/3 by 2, to get the equivalent fraction 2/6. Next, add the like fractions, 3/6 + 2/6, to get 5/6. So 1/2 + 1/3 = 5/6. Students also learn to subtract unlike fractions by following the same process that is used when adding unlike fractions. Tags: adding subtracting fraction fractions addition subtraction unlike denominator denominators least

User: yourteachermathhelp

Watch Video on Multiplying Decimals - Pre Algebra Help Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/multiplyingdecimals.php Students learn to multiply decimals in the same way that one would multiply whole numbers (vertically). However, at the end of the problem, students must determine where the decimal goes in the answer by counting the total number of digits to the right of the decimal point in the original numbers, then placing the decimal point in the answer so that the answer has this same total number of digits to the right of the decimal point. For example, after multiplying 1.05 x 7.4, since there are a total of 3 digits to the right of the decimal point in the original numbers, place the decimal point in the answer so that there are 3 digits to the right of the decimal point. Tags: multiplying decimal decimals multiplication multiply by

User: yourteachermathhelp

Watch Video on Decimal Word Problems - Pre Algebra Help Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/decimalwordproblems.php Students learn to solve word problems that involve adding or subtracting decimals. For example: Margaret is mailing three letters that weigh 3.7 oz., 2.913 oz., and 2.82 oz. What is the combined weight of the letters? Tags: Decimal Word Problems with Decimals adding decimals decimal addition add math

User: yourteachermathhelp

Watch Video on Dividing Mixed Numbers - Pre Algebra Help Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/dividingmixednumbers.php Students learn to divide mixed numbers by first rewriting the mixed numbers as improper fractions, then dividing the improper fractions, then rewriting the resulting improper fraction as a mixed number, if necessary. For example, to simplify 3 1/3 1 4/7, first rewrite the mixed numbers as improper fractions, to get 10/3 11/7. Next, change the division sign to multiplication and flip the second fraction, to get 10/3 x 7/11. Next, multiply across the numerators and denominators to get 70/33. Finally, rewrite 70/33 as the mixed number 2 4/33. Tags: dividing mixed number numbers division fraction fractions divide

User: yourteachermathhelp

Watch Video from YourTeacher.com - Pre Algebra Homework Help http://www.yourteacher.com http://www.yourteacher.com offers comprehensive pre algebra homework help - a complete library of online pre algebra lessons featuring a personal pre algebra teacher inside every lesson! Students can easily find help with pre algebra homework by simply clicking on the picture of their textbook and typing in their page number to access the exact pre algebra lesson from yourteacher.com that they need. The perfect pre algebra homework helper! Tags: pre algebra homework help with helper ii college for in math algerbra need my two online intermediate

User: yourteachermathhelp

Watch Video on Least Common Multiple - Pre Algebra Help Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/leastcommonmultiple.php Students learn that multiples of a number come from multiplying the given number by whole numbers. For example, 3 x 0 = 0, 3 x 1 = 3, 3 x 2 = 6, 3 x 3 = 9, 3 x 4 = 12, 3 x 5 = 15, etc., so 0, 3, 6, 9, 12, and 15 are all multiples of 3. Students also learn that the Least Common Multiple is the smallest multiple that two numbers have in common (not including zero). For example, to find the Least Common Multiple of 6 and 18, since multiples of 6 are 6, 12, 18, 24, and 30, etc., and multiples of 18 are 18, 36, 54, etc., the Least Common Multiple of 6 and 18 is 18. Tags: least common mutiple multiples LCM finding find problem problems math

User: yourteachermathhelp

Watch Video on Adding Decimals - Pre Algebra Help 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. Tags: adding decimals decimal addition add and subtract subtracting math

User: teachertube

Math Help - PreAlgebra - Dividing Fractions Students learn to divide fractions by first changing the division sign to multiplication and flipping the second fraction. For example, to simplify 7/12 divided by 7/9, first change the division sign to multiplication and flip the second fraction, to get 7/12 x 9/7. Next, multiply the fractions by first cross-canceling, then multiplying across the numerators and across the denominators. **See more education videos by TeacherTube Member yourteacher at http://www.TeacherTube.com*** Tags: teachertube teachertube.com dividing fraction fractions division divide help example

User: yourteachermathhelp

Watch Video on Box and Whisker Plots - Pre Algebra Help Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/boxandwhiskerplot.php Students learn to make a box-and-whisker plot for a given data set using the following steps. First, write the data set in order from least to greatest. Next, find the second quartile, which is the median for the entire data set. Next, find the first quartile, which is the median for the lower half of the data set, and find the third quartile, which is the median for the upper half of the data set. Next, find the least and greatest numbers in the data set. Next, draw a number line with vertical lines at the first, second, and third quartiles, and connect the endpoints of the vertical lines to make a "box". Next, plot the least number in the data set and connect it to the box with a segment, and plot the greatest number in the data set and connect it to the box with a segment, to make "whiskers". Tags: Box and Whisker Plot Math Plots example of box whisker plot graph

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