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# Strategies For Math

### ACT Prep

Even number dived evenly by 2. (-4,-4,0,2,4)
Odd numbers can;t be dived evenly by 2. (3,-1,0,1,3)
Prime Numbers Can only be divided by 1, and itself. (2,3,5,7,9,11,13)
Absolute Value a number distant between that number zero |6|=6
Variables Letters that represent numbers in a equation
Coefficents Numbers in a equation
Divisible by 3 any number if the sum can be divided by 3
Divisible by 6 if it ca be divided by the factors of 6 (2,3)
Divided by 9 Any number is divided by 9 if the sum of its digits is divisible by 9
Equal Sign = (5=2+3)
not equal sign =
strict inequallity > (5>4)
Strict inequality 4<5
Parentheses ( )
Brackets [ ]
Plus sign 1+1=2
Minus Sign 2-1=1
Plus - mInus + -
Minus- Plus - +
Asterisk *
Times 2x3=6
Multiple 2.3=6
Divsion 6/2
Created by: shyshy913
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