-6-(-4) =-2
-10 +6 = -4
6-7+2 =1
14- (-3) =4
-3 - (-7)=4
-3 -7= -10
3 -7= -4
3+7=10
-3 +7=4
Chapter 2
Multiplying Integers
Examples:
(+3)x(+2)=3 groups of 2
repeated addition
2+2+2= +6
2+2+2= +6
two groups of +3
(2)x(+3)=
Questions
(+2)x(+3)= +6
2 groups of (+3)
(+2)x(-3)= -6
2 groups of (-3)
(-2)x(+3)= -6
remove 2 groups of (+3)
(-2)x(-3)= +6
remove 2 groups of (-3
Sign Rules
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.
Chapter 3
Dividing Integers
Partitive Division is when you use groups of to get to your quotient.
6/2=3
(-6)/(-2)=+3
Quotative Division is when you use sharing to get to your quotient.
(-6)/2=-3
Multiplicative Inverse is when you use multiplication to figure out your quotient.
6/(-2)=
(-2)x(-3)=6
(-3)x(-2)=6
Means 6/(-2)=(-3)
Sign Rules
In a division question with an even amount or no negative signs the quotient will be positive.
e.g 6/2=3
(-6)/(-2)=3
In a division question with an odd number of negative signs the quotient will be negative.
e.g (-6)/2=(-3)
6/(-2)=(-3)
Chapter 4
Order of Operations with Integers
(+5) x (-3) + (-6)/(+3)=
Since there are no square brackets or exponents we should start with division and multiplication going from left to right.
[(+5) x (-3)] + [(-6)/(+3)]=
(-15)+(-2)=
After you're done with division and multiplication you should do addition
(-15)+(-2)=(-17)
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