Round multiply Videos - Free Educational Videos for Students in K - 12

Array

Lumos Video Store

This page provides a list of educational videos related to Round multiply. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Round multiply.


Estimating Products | MathHelp.com


By MathHelp.com

This lesson covers perimeter. Students learn that the perimeter of a figure is the distance around the figure, so the perimeter of a figure can be found by adding the lengths of its sides. Since all four sides of a square are equal in length, the perimeter of a square that has a side with a length of 8 feet is 8 + 8 + 8 + 8, or 32 feet. Since opposite sides of a rectangle are equal in length, the perimeter of a rectangle that is 4.5 meters by 6.2 meters is 4.5 + 4.5 + 6.2 + 6.2, or 21.4 meters.

8th Grade Math | MathHelp.com


By MathHelp.com

This lesson covers estimating products. Students learn to estimate a product or quotient by first rounding each number to one non-zero digit. For example, to estimate 8,291 x 27, first round 8,291 down to 8,000, and round 27 up to 30, then multiply 8,000 x 30 to get 240,000.

Imaginary Numbers | MathHelp.com


By MathHelp.com

This lesson covers estimating quotients. Students learn to estimate a product or quotient by first rounding each number to one non-zero digit. For example, to estimate 8,291 x 27, first round 8,291 down to 8,000, and round 27 up to 30, then multiply 8,000 x 30 to get 240,000.

Multiplying and dividing with significant figures | Decimals | Pre-Algebra | Khan Academy


By Khan Academy

This video takes us through some real world examples of when we should use significant figures when multiplying and dividing. An important note: never consider significant figures until you have reached your FINAL ANSWER. Otherwise, rounding too early will produce more uncertainty about your solution.

Multiplying Fractions by Whole Numbers 9-9


By David Horan

multiply a fraction with a whole number

Multiplying Fractions by Whole Numbers 9-9


By David Horan

multiply a fraction with a whole number.

Dividing Scientific Notation | MathHelp.com


By MathHelp.com

To multiply numbers that are in written in scientific notation, such as 1.4 x 10 to the -2nd times 5.3 times 10 to the 6th, we first multiply the decimals, in this case 1.4 times 5.3, to get 7.42. Next, we multiply the powers of 10, in this case 10 to the -2nd times 10 to the 6th. Notice that we’re multiplying two powers that have like bases, so we add the exponents and leave the base the same, to get 10 to the -2 + 6, or 10 to the 4th. So we have 7.42 times 10 to the 4th. Finally, we’re asked to write our answer in scientific notation. Notice, however, that 7.42 times 10 to the -4th is already written in scientific notation, because we have a decimal between 1 and 10 that is multiplied by a power of 10. So we have our answer.

Multiplying Whole Numbers with Fractions


By

Understand a fraction a/b as a multiple of 1/b

Conceptual understanding of multiplying fractions and whole numbers | Khan Academy


By Khan Academy

Here we have a nice visual explanation of how a mixed number is really a multiplication of a fraction and a whole number.

Multiplying fractions by whole numbers word problem | Math | 4th grade | Khan Academy


By Khan Academy

solves a word problem that involves multiplying a fraction by a whole number

Multiplying fractions by whole numbers 4.NF.B.4 4.NF.4


By S Hart

Multiplying Fractions by Whole numbers using repeated addition

Multiply fractions by whole numbers


By Gregory Asplund

Mutliplication of whole numbers

Multiplying fractions and whole numbers: mixed number answer


By Khan Academy

This video lecture series on Developmental Math by Khan Academy provides developmental math examples from the Monterey Institute. These start pretty basic and would prepare a student for the Worked Examples in Algebra course lectures.....

Multiplying fractions by whole numbers word problem | Math | 4th grade | Khan Academy


By KhanAcademy

solves a word problem that involves multiplying a fraction by a whole number