Absolute value
4-7
4 + (-7)
-3
How do you subtract one integer from another?
You add the oppostite or
Keep the first integer
Change the minus to addition
Add the opposites or
Keep, Change, Change
-3 x 4
-12
l-6l
6
-12+(-6)
-18
9- (-5)=
14
How are adding integers and subtracting integers related?
Adding and subtracting integers are related because when your are subtracting, it is the same as "ADDING the OPPOSITE"
-8 x -8
64
-4-6
-4 + (-6)
-10
-48 divided by 6
-8
l-563l
563
Use mental math. x+(-5)=4
x=9
-2-3
-2 +(-3)
-5
How do you multiply and divide integers?
Same signs = positives
Different signs = negatives
-100 divided by -10
10
-l985l
-985
Use mental math. y+6= -2
y= -8
-6-(-9)
-6+ (+9)
3
If you have multiplication, addition, subtraction, division, exponents, and parenthesis all in one problem, how do you know which to do first?
Order of Operations: PEMDAS
Parenthesis
Exponents
Multiplication/Division
Addition/Subtraction
-3 x -3 x -3
-27