it is as easy as playing tic-tac-toe!. make the vertical and horizontal lines of a tic- tac-toe game
TRANSCRIPT
Rules for Multiplying Integers
It is as easy as playing tic-tac-
toe!
Make the vertical and horizontal lines of a tic-tac-toe game.
Rules for Multiplying Integers
Place three positive signs going diagonal and negative signs in the rest of the remaining places.
Rules for Multiplying Integers
++
+-
-----
Now you can start from any side and go any straight direction and you will see the correct integer rule for multiplication.
Rules for Multiplying Integers
++
+-
-----
A positive times a negative equals a negative.Left upper corner going right or downRight lower corner going left or up.
Rules for Multiplying Integers
++
+-
-----𝟐𝟑 ∙ (−𝟑 )=(−𝟔𝟗 )
A negative times a positive equals a negative.Center row going left or rightCenter column going up or downRight upper corner or left lower corner going
diagonally
Rules for Multiplying Integers
++
+-
-----(−𝟐𝟓 ) ∙𝟔=(−𝟏𝟓𝟎 )
A negative times a negative equals a positive.Right upper corner going left or downLeft lower corner going right or up
Rules for Multiplying Integers
++
+-
-----(−𝟐𝟓 ) ∙−𝟔=(𝟏𝟓𝟎 )
A positive times a positive equals a positive.Left upper corner and right lower corner going
diagonally
Rules for Multiplying Integers
++
+-
-----
Even a knucklehead
like me knows that!
Make the vertical and horizontal lines of a tic-tac-toe game.
Place three positive signs going diagonal and negative signs in the rest of the remaining places.
Now you can start from any side and go any straight direction and you will see the correct integer rule for multiplication.
Rules for Multiplying Integers
++
+-
-----It works for
division too.