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Thursday, January 9, 2014

Jacob's Integer Scribe Post

Subtracting Integers- To remove what isn't there, you must add a zero pair.

1. -8--8= 

#1: You should never write positive or negative, instead you write either have or owe. If there is a double negative, then you remove and if there is no double negative, you just write "and".
Ex: -8--8(double negative)=
      Owe 8 remove owe 8
#2: the second step is showing your diagram. You can't remove what isn't there and that's where the zero pair comes in. To remove what isn't there, you must add a zero pair.
Ex: -8--8(double negative)= 0
       Owe 8 remove owe 8                                /\
       _ _ _ _ _ _ _ _ _   _ _ _ _ _ _ _ _   ________|
                                  + + + + + +++

       | _ _ _ _ _ _ _ _|
       |+ + + + + +++|
*Negative 8 is turned into positive 8

2. 3--7(double negative)= +10
    Owe 3 remove owe 7           / \
    _ _ _  _ _ _ _ _ _ _   ________|
             + + + ++++

    |_ _ _|
    |+++ |++++


    

1 comment:

  1. Thanks for making clear examples for the chips. It's easy to understand and it's legible. One thing you could always add is a video or a game maybe to get a better chance of more people understanding it more. Overall, good job for explaining and representing each equation!

    ReplyDelete

 

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