Math Student Help

Important rules to remember when adding, subtracting, multiplying, or dividing fractions!

Duration : 0:1:28

(more…)

Anyone can DRAW fraction multiplication

Duration : 0:4:39

(more…)

Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/multiplyfractions.php Students learn to multiply fractions by multiplying across the numerators, and multiplying across the denominators. For example, to multiply 1/2 x 3/7, multiply across the numerators, 1 x 3 = 3, and multiply across the denominators, 2 x 7 = 14. So 1/2 x 3/7 = 3/14. Students also learn to cross-cancel when multiplying fractions. For example, to multiply 3/5 x 5/9, the 3 and 9 cross-cancel to 1 and 3, and the 5 and 5 cross-cancel to 1 and 1. Therefore, 3/5 x 5/9 can be rewritten as 1/1 x 1/3, and multiplying across the numerators and denominators, 1/1 x 1/3 = 1/3.

Duration : 0:0:51

(more…)

More on multiplying matrices.

Duration : 0:14:37

(more…)

Access full lesson containing this video at: http://www.yourteacher.com/algebra1/multiplyingfractions.php Students learn to multiply two fractions by multiplying across the numerators, and multiplying across the denominators. Students learn to divide two fractions by taking the reciprocal of the second fraction, then multiplying the fractions.

Duration : 0:1:31

(more…)

http://www.FreedomUniversity.tv, john@e-liteworks.com, 719-963-5873. This is part of a series of math videos and worksheets to ensure your successs. This video about how to figure equivalent fractions.

Duration : 0:4:14

(more…)

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.

Duration : 0:2:12

(more…)

Multiplying two 2×2 matrices.

Duration : 0:13:40

(more…)

Multiplying fractions

Duration : 0:8:25

(more…)