# Multiplication Song - Multiply by 8

## By Flocabulary

This educational hip-hop song teaches students how to multiply by 8's. Elementary learners will enjoy this animated song as they practice multiplying by 8. This is a great resource to introduce and/or review multiplication in the upper elementary classroom.

# Division as an Unknown Factor

## By Skubes ed

Understand division as an unknown-factor problem. For example, find 32 ÷ 8 by finding the number that makes 32 when multiplied by 8.

# Multiplication and Division Fact Families

## By Skubes ed

3.OA.7 Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties

# [3.OA.7-1.0] Advanced Mult/ Division - Common Core Standard

## By Freckle education

Fluently multiply within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations.

# Cool math fun for kids multiplying powers

## By braintofu

Cool math fun for kids multiplying powers

# Multiplying Matrices

## By WOWmath.org

YouTube presents Multiplying Matrices, an educational video resource on math.

# Multiplying Mixed Numbers - YourTeacher.com - Pre Algebra Help

## By yourteachermathhelp

For a complete lesson on multiplying mixed numbers go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson students learn to multiply mixed numbers by first rewriting the mixed numbers as improper fractions then multiplying the improper fractions together then rewriting the resulting improper fraction as a mixed number if necessary. For example to multiply 1 8/15 x 1 1/4 first rewrite the mixed numbers as improper fractions to get 23/15 x 5/4. Next cross-cancel the 15 and 5 to 3 and 1 and we have 23/3 x 1/4. Next multiply across the numerators and denominators to get 23/12. Finally rewrite 23/12 as the mixed number 1 11/12.

# One-Step Division Equations - MathHelp.com - Math Help

## By yourteachermathhelp

1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson students learn to solve one-step division equations. For example to solve x/4 = 2 multiply both sides of the equation by 4 to get x = 8. Next check the solution by substituting an 8 back into the original equation to get (8)/2 = 4 which is a true statement so the solution checks.

# Matrices: Basic Matrix Operations (add, subtract, multiply by constant)

## By PatrickJMT

Matrix Operations - Adding, Subtracting, and Multiplying by a constant for matrices is discussed. For more free math videos, visit http://PatrickJMT.com!

# Parallel Lines | MathHelp.com

## By MathHelp.com

This lesson covers imaginary numbers. Students learn that the imaginary number "i" is equal to the square root of -1, which means that i^2 is equal to (the square root of -1) squared, which equals -1. Students also learn to simplify imaginary numbers. For example, to simplify the square root of -81, think of it as the square root of -1 times the square root of 81, which simplifies to i times 9, or 9i. To simplify 11/8i, the first step is to get rid of the "i" in the denominator by multiplying both the numerator and the denominator of the fraction by i, to get 11i/8i^2, and remember that i^2 = -1, so we have 11i/8(-1), or 11i/-8, or -11i/8.

# Grade 2 math 11.10a adding and subtracting money (dollars and cents)

## By Joann's School

How to add or subtract money in vertical form as the amounts stacked one on top of the other. A two part word problem is included involving addition and subtraction of money.

# Multiplying and dividing rational expressions 2 | Algebra II | Khan Academy

Khan Academy presents Multiplying and Dividing Rational Expressions 2, an educational video resource on math.

# Example Problem - Multiplying Rational Expressions

Watch this example of muliplying rational expressions, simplifying the solution (writing it in lowest terms), and determining the domain of the solution.

# Example Problem - Multiplying Rational Expressions

Watch this example of muliplying rational expressions, simplifying the solution (writing it in lowest terms), and determining the domain of the solution.

# Multiplying and dividing scientific notation

Amazingly, we can figure out how far the sun is from the earth if we know how to multiply numbers in scientific notation.

# Multiplying and dividing scientific notation

Learn how to solve a multiplication problem using scientific notation: (9.1 * 10^6)(3.2 * 10^-5)

# Multiplying and dividing scientific notation

Multiplying really big or really small numbers is much easier when using scientific notation. This video gives an example of multiplying three numbers that are written in scientific notation.

# Multiplying and dividing scientific notation

Ever wonder what your part of the national debt is? It might surprise you. What isn't surprising is that you can use scientific notation and division to figure out the answer.

# [3.OA.5-1.0] Multiplication Properties - Common Core Standard

## By Front Row

Discover more Common Core Math at https://www.frontrowed.comApply properties of operations as strategies to multiply.2 Examples: If 6 Ãƒâ€” 4 = 24 is known, then 4 Ãƒâ€” 6 = 24 is also known. (Commutative property of multiplication.) 3 Ãƒâ€” 5 Ãƒâ€” 2 can be found by 3 Ãƒâ€” 5 = 15, then 15 Ãƒâ€” 2 = 30, or by 5 Ãƒâ€” 2 = 10, then 3 Ãƒâ€” 10 = 30. (Associative property of multiplication.) Knowing that 8 Ãƒâ€” 5 = 40 and 8 Ãƒâ€” 2 = 16, one can find 8 Ãƒâ€” 7 as 8 Ãƒâ€” (5 2) = (8 Ãƒâ€” 5) (8 Ãƒâ€” 2) = 40 16 = 56. (Distributive property.)Front Row is a free, adaptive, Common Core aligned math program for teachers and students in kindergarten through eighth grade. Front Row allows students to practice math at their own pace - learning advanced concepts when they 're ready and receiving remediation when they struggle. Front Row provides teachers with access to a detailed data dashboard and weekly email reports that show which standards are causing students difficulty, what small groups can be formed for interventions, and how their students are progressing in math.Discover more Common Core Math at https://www.frontrowed.com