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math review

Even # Are divisible by 2
Odd # are not divisible by 2 and ALWAYS have a remainder
Digits there are 10 digits, in which you can make any # out of
Prime # #'s only divisible by itself and 1
Absolute value distance between 0 and that # (always positive)
Variables/Coefficient letters in a equation, the coefficient are the #(s) next to a letter
# divisible by 2 any even # is divisible by 2
# divisible by 3 sum of digits can be divisible by 3, then it is divisible by 3
# divisible by 4 if the tens and ones digits are divisible by 4
#divisible by 5 last digit is either a 5 or a 0
divisible by 6 last digits are factors of 6 (2&3)
divisible by 8 if the last 3 digits are divisible by 8
divisible by 9 if the last digits add up to 9 then it is divisible by 9
= equals sign
slash in between the equals sign--> inequality
> greater than
less than
greater than or equal to
less than or equal to
( ) parenthesis--> calculate whats inside those parenthesis first
[ ] brackets --> calculate whats in the brackets first
+ plus sign meaning addition between to numbers or terms
± calculate both plus and minus operation
minus-plus (doesnt exist) calculate both minus and plus operation
* multiplication
x times sign meaning multiplication
meaning multiplication
÷ means to divide
/ means to divide
exponents multiplying a number by itself by a # of times
multiplying exponents add the exponents
dividing exponents subtract exponents
negative exponents reciprocal of that exponent
fractional powers #above the line is most like a real exponent 9 1/2 the two would become the radical of 9
power to a power multiply exponents
zero power always equal 1
first power always equals that number
Created by: 13yesca1