PEMDAS- Order of Operations

It tells us the order to solve an equation

R-15

1.

-7 x 4 +8 ÷2

Division

How would you model
12 ÷4=3







Is it possible for the quotient for be anywhere else?  No, it's a fact family so it can switch around. 


L-11

What do you think you would write for a rule when dividing quotients?  Why? 

(+)÷(-)=(-)

(+)÷(+)=(+) No flips to red chips

(-)÷(-)=(-) Single flip. Middle is red. one side black. Other side red.

(-)÷(-)= (+)

÷