Khan Academy
Khan Academy: Alternate Mental Subtraction Method
Sal explains how he subtracts numbers like 9456 and 7589 in his head.
Khan Academy
Khan Academy: 1 and 1 to Different Powers
Use odd and even rules to determine the sign of an exponential expression.
Sophia Learning
Sophia: Dividing Two Digit Numbers by Two or Three Digit Numbers: Lesson 4
This video demonstrates division of two-digit numbers by two- or three- digit numbers. This lesson is 4 of 19 in the series titled "Dividing Two Digit Numbers by Two or Three Digit Numbers." Includes short multiple-choice quiz. [2:07]
Sophia Learning
Sophia: Multiplying Rationals: Lesson 4
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 4 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Multiplying Rationals: Lesson 5
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 5 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Multiplying Rationals: Lesson 6
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 6 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Multiplying Rationals: Lesson 1
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 1 of 6 in the series titled "Multiplying Rationals."
Sophia Learning
Sophia: Representing Rational Numbers Using Variables: Lesson 9
This lesson demonstrates how to represent rational numbers using variables. It is 9 of 9 in the series titled "Representing Rational Numbers Using Variables."
Sophia Learning
Sophia: Representing Rational Numbers Using Variables: Lesson 1
This lesson demonstrates how to represent rational numbers using variables. It is 1 of 9 in the series titled "Representing Rational Numbers Using Variables."
Sophia Learning
Sophia: Dividing Two Digit Numbers by One Digit Numbers Repeating: Lesson 4
This video lesson demonstrates long division of a two-digit number by a one-digit number, where the answer will contain a repeating decimal. It is 4 of 10 in the series titled "Dividing Two Digit Numbers by One Digit Numbers Repeating."...
Sophia Learning
Sophia: Representing Rational Numbers Using Variables: Lesson 7
This lesson demonstrates how to represent rational numbers using variables. It is 7 of 9 in the series titled "Representing Rational Numbers Using Variables."
Sophia Learning
Sophia: Rational and Irrational Numbers
In this lesson, students will learn Rational and Irrational Numbers.
Sophia Learning
Sophia: Solving Absolute Value Expressions
In this lesson, students will learn how to solve Absolute Value Expressions.
Sophia Learning
Sophia: Adding and Subtracting Money Values
In this lesson, students will add and subtract money values.
Sector Matemática
Sector Matematica: Orden en Q (Numeros Racionales)
This video tutorial shows how to compare several rational numbers. [4:08]
Sophia Learning
Sophia: Dividing Two Digit Numbers by Two or Three Digit Numbers: Lesson 1
This video demonstrates division of two-digit numbers by two- or three-digit numbers. This lesson is 1 of 19 in the series titled "Dividing Two-Digit Numbers by Two or Three-Digit Numbers." Includes short multiple-choice quiz. [4:19]
Sophia Learning
Sophia: Dividing Two Digit Numbers by One Digit Numbers Repeating: Lesson 1
This video lesson demonstrates long division of a two-digit number by a one-digit number, where the answer will contain a repeating decimal. It is 1 of 10 in the series titled "Dividing Two-Digit Numbers by One-Digit Numbers Repeating."...