Lattice Multiplication

How to do: Lattice Multiplication Created by Lilian Patrick 2009

What is lattice multiplication and when would we use it? ,[object Object],[object Object]

Sounds great! How do we get started?

Let’s start with a 2-digit by 1-digit example… ,[object Object],[object Object],[object Object]

[object Object],4 2 9 2 x 9 4 x 9

[object Object],4 2 9 1 8 3 6 8 + nothing = 8 6 + 1 = 7 3 + nothing = 3

[object Object],4 2 9 1 8 3 6 8 7 3 42 x 9 = 378

Now let’s try a 2-digit by 2-digit multiplication problem… ,[object Object],[object Object],[object Object]

[object Object],And the numbers: Since they’re both 2-digits, it doesn’t matter which one goes on the top and which one goes to the right of the grid. 5 4 9 7

[object Object],5 4 7 4 x 9 4 x 7 5 x 9 5 x 7 5 4 9 7 3 6 2 8 4 5 3 5 9

[object Object],5 4 9 7 3 6 2 8 4 5 3 5 8 3 1 The 1 is carried from the previous diagonal: 5 + 2 + 6 = 13 The 3 goes at the bottom of that diagonal. The 1 gets added to the next diagonal. 2 5 1 54 x 97 = 5,238

[object Object],1.) 26 x 4 = 2 6 4 2.) 31 x 62 = 3 1 6 2

See if you got the answers! ,[object Object],2 6 4 2 4 8 0 1 0 4 1 3 1 6 2 2.) 1 8 0 6 0 0 6 2 9 1 2 2 1 26 x 4 = 104 31 x 62 = 1,922

Now that you’ve learned lattice multiplication, you can practice with any numbers of your choice! Good luck!

Lattice Multiplication

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Andere mochten auch

Andere mochten auch (20)

Ähnlich wie Lattice Multiplication

Ähnlich wie Lattice Multiplication (20)

Kürzlich hochgeladen

Kürzlich hochgeladen (20)

Lattice Multiplication