65 Videos for "multiplication"

Proportions  Problem 4
Math › Algebra › Solving Equations
Technique for turning percent problems into proportions that can be solved with cross multiplication 
Commutative, Associative  Concept
Math › PreAlgebra › Properties of Numbers
Overview of the commutative and associative properties for addition and multiplication 
Multiplying and Dividing  Concept
Math › PreAlgebra › Whole Numbers
Looking at how multiplication represents repeated addition, as well as special cases of multiplying and dividing whole numbers 
The Identity Matrix  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine the identity matrix of order n. 
Multiplying and Dividing  Problem 1
Math › PreAlgebra › Whole Numbers
Using opposite operations to solve one step equations that involve multiplication or division of whole numbers 
Scientific Notation  Problem 3
Math › Algebra 2 › Exponents
How to evaluate products involving scientific notation. 
The Inverse of a Square Matrix  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine whether two matrices are inverses. 
Unit Vectors  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the unit vector that has the same direction as a given vector. 
Square Matrices  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine whether two matrices can be multiplied, and if so, what the dimensions of the product will be. 
Solving a Rational Equation  Problem 6
Math › Algebra 2 › Rational Expressions and Functions
Solving rational equations using cross multiplication, checking for extraneous solutions 
Solving and Graphing Multistep Inequalities  Problem 1
Math › Algebra › Solving and Graphing Inequalities
How to solve and graph multistep inequalities using multiplication and subtraction. 
Unit Vectors  Concept
Math › Precalculus › Vectors and Parametric Equations
How to express a vector algebraically in terms of the unit vectors i and j. 
Square Matrices  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to interpret 2x2 matrices as transformations. 
Multiplying and Distributing Radical Expressions  Problem 7
Math › Algebra › Radical Expressions and Equations
Multiplying radical expressions in fractions with coefficients, including simplifying before or after multiplication. 
Multiplying and Dividing Rational Expressions  Problem 3
Math › Algebra 2 › Rational Expressions and Functions
How to simplify a rational expression involving both multiplication and division. 
The Inverse of a Square Matrix  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine that a matrix has no inverse using row operations. 
The Midpoint and Distance Formulas in 3D  Concept
Math › Precalculus › Vectors and Parametric Equations
How to derive the formula for the midpoint of a segment in three dimensions. 
The Inverse of a Square Matrix  Problem 3
Math › Precalculus › Systems of Linear Equations and Matrices
How to find the inverse of a square matrix of order 3 using row operations. 
Unit Vectors  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to convert a vector into component form when it is expressed in terms of the unit vectors i and j. 
The Inverse of a Square Matrix  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to find the inverse of a square matrix of order 2 using row operations.