This document outlines rules for multiplying integers: the product of a positive integer and a negative integer is negative; the product of two positive integers is positive. It provides examples of applying these rules to simplify integer expressions, such as 4(-2) = -8. Exercises are included for the reader to practice applying the rules to additional integer multiplication problems.

3. • RULE 1: The product of a positive integer and a
negative integer is negative.
Rules for Multiplying Integers
Example: Simplify
4 x (-2) or 4(-2)
Solution:
4(-2) = +4(-2) = -8

4. Simplify the ff:
1. -3(7) + 5(-4) =
2. 10(-7) =
3. 3(-2) =
EXERCISE

5. • RULE 2: The product of two positive
integers is positive.
Rules for Multiplying Integers
Example: Simplify the ff:
1. 2(3) = 2. -7(-4) =
Solution:
1. 2(3) = 6 2. -7(-4) = 28

6. Simplify the following:
1. 10(-7) = ___
2. (-5 + 8)(2 – 3) = ___
3. 5(-2) + 3 = ___
4. -20(-5) = ___
Exercise: