Distributive Property with Partial Products Method of Multiplication
-
Upload
harding-vinson -
Category
Documents
-
view
20 -
download
0
description
Transcript of Distributive Property with Partial Products Method of Multiplication
![Page 1: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/1.jpg)
Distributive Property with Distributive Property with Partial Products Method of Partial Products Method of
MultiplicationMultiplicationMultiplying 2-digit by 2-digit NumbersMultiplying 2-digit by 2-digit Numbers
![Page 2: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/2.jpg)
Don't be Don't be scared!scared!
You can do thisYou can do this
![Page 3: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/3.jpg)
Let's start with a Let's start with a problemproblem
• I know you're a little short I know you're a little short and funny looking...and funny looking...
• But I meant a math problemBut I meant a math problem
• Let's go with 56 x 78Let's go with 56 x 78
![Page 4: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/4.jpg)
Expand your mind, manExpand your mind, man
• Actually, you should put the Actually, you should put the two numbers in expanded two numbers in expanded formform
• 50 + 650 + 6
• 70 + 870 + 8
![Page 5: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/5.jpg)
Set it upSet it up
• So we're multiplying So we're multiplying
• (50 + 6) x (70 + 8)(50 + 6) x (70 + 8)
![Page 6: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/6.jpg)
Equality for Equality for All!All!
Since there are 4 numbers to deal Since there are 4 numbers to deal with...with...
Place 4 equal signs under the Place 4 equal signs under the problemproblem
![Page 7: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/7.jpg)
Order UpOrder Up
• Okay, the commutative Okay, the commutative property does state that property does state that order doesn't matter, but...order doesn't matter, but...
• You should follow a certain You should follow a certain order here because it's easy order here because it's easy to get mixed upto get mixed up
• So let's start with the ones So let's start with the ones place on bottomplace on bottom
![Page 8: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/8.jpg)
Multiply the 8 by both numbers Multiply the 8 by both numbers on topon top
Good idea to go right to leftGood idea to go right to left
![Page 9: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/9.jpg)
Move OverMove Over
• Now let's get to the tens Now let's get to the tens place on bottomplace on bottom
• Write the 70 down by the Write the 70 down by the last two equal signslast two equal signs
![Page 10: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/10.jpg)
Keep the pattern goingKeep the pattern going
• Multiply 70 times the ones Multiply 70 times the ones place on topplace on top
![Page 11: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/11.jpg)
And GoingAnd GoingNow multiply the 70 times the tens Now multiply the 70 times the tens
place on topplace on top
![Page 12: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/12.jpg)
It All Adds UpIt All Adds UpNow add up your partial products to find your final answerNow add up your partial products to find your final answer
![Page 13: Distributive Property with Partial Products Method of Multiplication](https://reader035.fdocuments.in/reader035/viewer/2022062718/56812d0c550346895d91dfa9/html5/thumbnails/13.jpg)
So 56 x 78 = 4,368So 56 x 78 = 4,368Here's a picture of your motherHere's a picture of your mother