Two-Digit by Two-Digit Multiplication Box Method
Presentation
•
Mathematics
•
4th - 5th Grade
•
Hard
Joseph Anderson
FREE Resource
3 Slides • 6 Questions
1
Box Method of Multiplication #2
2 Digit by 2 Digit
2
3
Box Method
Split your two digit numbers up by place
Ex: 52 becomes 50 and 2, and 23 becomes 20 and 3
Multiply each place by the other digit
Ex: 52 x 23 = 50 x 20 , 50 x 3, 2 x 20 and 2 x 3
Add your partial products together
Ex: 1000 + 150 + 40 + 6 = 1196
FInal Step = Celebrate :)
4
Multiple Choice
For 35 X 18, what would you split 35 into?
30 and 5
30 and 8
5 and 8
5
Multiple Choice
For 42 X 27, what would you split 27 into?
20 and 2
20 and 7
2 and 7
6
Multiple Choice
For 81 X 36, what would you split 81 into?
80 and 1
80 and 6
1 and 6
7
Multiple Choice
What is 45 x 13?
585
58
120
135
8
Poll
Are you ready to demonstrate this strategy to Mr. Whittleton via Google Meet?
Yes!
Almost, I just need some practice.
I'm getting there, but I need a little help.
NO! I need a lot of help!
9
Multiple Choice
What is 54 x 45?
2430
2250
2160
99
Box Method of Multiplication #2
2 Digit by 2 Digit
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