By: Michael Bennett and Daniel Kim

Orders of Operations

Parentheses-first Exponents-second Multiplication/division-third/fourth• You do what is ever first in the problem

Addition/Subtraction-fifth/sixth You do what is ever first in the

promblem

An ex. of Order of Operations

3+5x102-(9x9)/2= 3+5x102-81/2= 3+5x100-81/2= 3+500-81/2= 3+500-40.5= 503-40.5=462.5

Prime and Composite

Prime number-is a number that has two factors, 1 and itself. Ex. 3, 1x3; 23, 1x23

Composite number-is a number with three or more factors. Ex. 10, 1x10,2x5; 27, 1x27,3x9

0 and 1 are neither prime or composite.

Prime Factorization

Prime factorization-is breaking down composite numbers into prime numbers and multiplying the prime numbers to get the original number. Ex.28, 28/2=14,14/2=7, 28=2x2x7 You multiply the divisor(s) and answer to

get the original number Say it is a prime number, you would do

nothing to it, it is already prime. Ex. 19=19, you can not divide it any more.