Showing posts with label real number operations. Show all posts
Showing posts with label real number operations. Show all posts

Multiplying and Dividing Integers

YouTube Playlist on Real Number Operations

Multiplying a negative number by a positive number will result in a negative number. And when multiplying two negative numbers the result will be positive. Be careful when simplifying 5(−6), the operation here is multiplication NOT subtraction so 5(−6) = −30. The rules for division are the same.

(Negative) x (Positive) = (Negative) 
Example: (−7)(+4) = −28

(Negative) x (Negative) = (Positive) 
Example: (−7)(−4) = +28

Also, zero times anything is zero.

Multiply or Divide.
Dividing by zero is undefined. What happens when you try to divide by zero on a calculator?

Zero and Division

Divide.
Video Examples on YouTube: