{ Multiplication Lattice Multiplication

 We will compare what you already know about multiplication and construct a statement about the factors.  And we will reproduce a multiplication problem in a lattice chart. Today we will:

2,589 x 458=_____ Solve this problem- any way that you want to.

{ How did you solve the problem? Turn and Whisper

 Are there different ways to multiply?  Does everybody use the same way?  Does that make their method wrong?

{ Think of ways you like to use. Turn and talk to your partner and describe what you know about the different methods of multiplication.

{ What is one way to multiply numbers? What do we do to a number, if we multiply it? Class Discussion

{  When we multiply- numbers are interchangeable.  interchangeable- capable of replacing or changing places with something else 35 = 5 x 7 35 is 5 times as many as 7 AND 7 times as many as 5.

{ I have an easy way to solve this problem….. 2x4=____

{ It is called the Lattice Method of Multiplication 2 4 First number across the top Second number down the side

{ Tens place Ones Place

 When we draw the lattice chart we: 1. Draw your boxes 2. Then, your lines. 3. Corner to corner-out the door.

14x56=___  Multiply the numbers.

14x56=___  Add the numbers in the line together- then bring down.

14x56= So the answer is 784  Start from the top- bring down the numbers.

29 x 9 =_____

1 6 Care the one 1 2 Answer= 261

Your turn!  Draw your box.  Draw your lines- corner to corner out the door.

38 x 24= __

42 x 35= __

254 x 37=____

{ Quick Write Determine your favorite way to multiply and explain why it is your favorite.

Teacher Tube Video