1. Chapter 2.4/2.6 Notes: Multiplying and Dividing Real Numbers
Goal: You will multiply and divide real numbers.

2. Rules for Multiplying Integers:
Multiplying two numbers with the same sign will ALWAYS equal a positive number.
i.e. 4(8) = ___
i.e. -9(-5) = ____
Multiplying two numbers with different signs will ALWAYS equal a negative number.
i.e. 4(-9) = ____
i.e. -10(50) = ____

3. Find the product.
Ex.1: 2(-5)(-4) Ex.2:
Ex.3: -14(2)(-4)
Properties of Multiplication:
Property of Zero: The product of a number and 0 is 0.
i.e. -3 • 0 = ___
i.e. 5(0) = ____

4. The identity property states that the product of a number a and 1 is a
The identity property states that the product of a number a and 1 is a. The number 1 is called the multiplicative identity.
The reciprocal of a nonzero number a, written as , is called the multiplicative inverse of a.
i.e ____ i.e ___
i.e. The multiplicative inverse of is _____.

5. Rules for Dividing Integers:
Dividing two numbers with the same sign will ALWAYS equal a positive number.
i.e. 28 ÷ 7 = ___
i.e. -15 ÷ -3 = ___
Dividing two numbers with different signs will ALWAYS equal a negative number.
i.e. -16 ÷ 4 = ___
i.e. 99 ÷ -11 = ___

6. Find the quotient.
Ex.4: 68 ÷ Ex.5: -45 ÷ -15
Ex.6: Ex.7: