The sign rules are:

If theres two of the same integers (+,-) it means the answer is positive

eg. (+4)+(+9)=+13

If the signs are different (+,-) the answer would be negative

eg. (-4)-(+9)=-13

The sign rule only works while using subtracting, dividing, multiplying, and adding

Examples:

(1.)(+4)+(+9)=+13 (2.)(-4)-(+9)=-13

(3.)(-4)-(-9)=+5 (4.)(+3)x(+2)=+6

(5.)(+3)x(-3)=-9 (6.)(-5)x(-5)=+25

(7.)(-8)÷(+4)=-2 (8.)(-8)÷(-4)=+2

(9.)(+8)÷(-4)=-2

Sentences for both multiplying and division are:

Multiplying sentences always go with

__groups of__, like:
eg. 3

__groups of__+2 or +6
Dividing sentences always go with either

__Share__no.__into__no.__equal groups__or__how many groups of__no.__are in__no., like:
eg.

__Share__-8__into__+4__equal groups__or -2
eg.

__how many groups of__-4__are in__+8 or -2
These are the multiplying and dividing diagrams:

But Dividing has so much diagrams based in sentences, like:

And Dividing also has some division that can't use one of the two statements, like:

eg. (-8)÷(-4)=+2

How many groups of (-4) are in (-8)/ can't use "share" statements/ CAN BE DIAGRAMED

eg. (+8)÷(-4)=-2

How many groups of (-4) are in (+8)/ can't use "share" statements/ CAN BE DIAGRAMED

And then there's something called the

__Multiplicative Inverse__
Which means the multiplication statement can't be diagramed like this question, but can be stated.

eg. (-4)x(-2)=+8

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