-NEGATIVE is blue
+POSITIVE is red
BOTH=zero pair
Remember the song "use a zero pair when subtracting something that is not there"
(use this song it will help)
Grade 7 way
Using brackets ( )
Standard form
Not using brackets ( X )
If you are having trouble and you don't understand intergers use a number line or think of it as money.(try it out right now)
Even= When you have an even number of negative factors the product is POSITIVE
ODD= When you have an odd number of negative factors the product is negative
Examples:
-11-(4)=-7 - - - - - - - (- - - -) Take this away22-(-9)
22-+(-9)=31 + + + + + + + + + + + + + + + + + + + + + +
- - - - - - - - -
+ + + + + + + + +
These are supposed to be zero pairs
(sorry about the whole zero pair thing )
-9 +4 +(-9)
-9 +4 -9 Sorry I tried making a number line but it didn't work
-9 -9 +4 But a number line is a good strategy-for me anyway
-18+4= -14
example of multyplying integers:
7X-2
Forget the signs and multyply normaly
7X2= 14Now you can go back to the signs
You know that a positive times a negative is a negative
So your answer is obviously -14
Sorry that I didn't do any of the chapters
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