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Tuesday, December 11, 2012

multiplying integers

4x(-1)= (- 4)
4 groups of - 1
3x5= 15
3 groups of 5
5 x 1 = 5


5 groups of 1
 
 
- 1 x 6 = -6
Todays notes
 6x4=24
5x3=15
9x1=9
4x2=8
 
-6x4=-24
-5x3=-15
-9x1=-9

-4x2=-8

6x-4=-24
5x-3=-15
9x-1=-9
4x-2=-8

-6x-4=24
-5x-3=15
-9x-1=9
-4x-2=8
axb=c
-axb=-c
ax-b=c
-ax-b=+c
https://www.youtube.com/watch?v=Gk4QhK3KMq4Multiplying Integers Using Chip Model.wmv

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