Multiplying Signed Numbers: Other Ways of Indicating Multiplication by Signed Numbers
This clip explains that signs can sometimes be confused with orders to add or subtract. To avoid this, signed numbers are sometimes enclosed in parentheses. And, in some instances, if both factors are in parentheses, " ..
Multiplying Signed Numbers: Second Exercise in Multiplying Signed Numbers
In this clip, the student utilizes rules taught in the lesson's previous clips to solve problems involving multiplication of signed numbers.
Multiplying Signed Numbers: Summary: Multiplying Signed Numbers
This clip reviews the basic rules that apply to multiplying signed numbers. If the two signs are the same, the answer is positive. If they're different, the answer is negative. And, when multiplying more than two signed ..
Multiplying Signed Numbers: Third Exercise in Multiplying Signed Numbers
This clip provides the student with additional exercises in multiplying signed numbers. The clip notes that, " choosing the right sign is particularly important."
Multiplying Two Expressions
Multiplying the contents of two sets of parentheses demonstrates how algebra provides the tools to break the most complicated problem into simple, sequential steps.
Multiplying Two Factors with the Same Base
The rules for exponents begin with the rule for multiplying two factors with the same base.
Multiplying Two Polynomials
Procedure for multiplying two polynomials.
Multiplying Whole Numbers, Part 1: Arrays
This clip explains that one way to look at multiplication is through a pattern of columns and rows known as an array.
Multiplying Whole Numbers, Part 1: Identity For Multiplication, The
This clip explains that, just as zero is the identity for addition, the number 1 is the identity for multiplication because, any number, when multiplied by 1, "...isn't changed at all."
Multiplying Whole Numbers, Part 1: Introduction to Multiplication: Factors and Products
This clip explains that multiplication is "a shortcut for addition." It also introduces the concept of factors, and states that the answer in a multiplication problem is known as the "product."