Unit 4: Order of Operations

Summary of Knowledge

We learned how to solve problems that have addition, subtraction, multiplication, division, and exponents. We learned the proper way to solve them and the process we have to follow.This is important because that way if someone has an equation in any part of the world they will always have the same answer.

Key Vocabulary

Order of Operations: rules in which to preform operations (multiplicative, addition, subtractions, divisions and exponents)

Exponents: a symbol showing the power to which a quality is to be taken.

Task Analysis

1.Parentheses

a. solve from inside to outside

ex:(2(1)2) 1=first 2=second

2.Exponents

3.Multiplication
a. from left to right

4.Addition and Subtraction

a. from left to right

Examples:
1.

3^3/2^3*(5*10)+20 -30

( SOLVED PARENTHESIS )

3^3/2^3*(50)+20-30

(SOLVED EXPONENTS)

27/8*50+20 -30= 158.75

2.

-10*5+(25 + -5)

(SOLVED PARENTHESIS )

Unit 5 Order of Operations » Quiz maker software
-10*50 + (20) = -480

Quiz

Helpful videos

this videos will help you understand order of operations.

http://www.youtube.com/watch?v=gjrGd9TjjnY&feature=player_embedded#at=86

http://www.youtube.com/watch?v=gjrGd9TjjnY&feature=player_embedded#at=86

Game

this game will help you practice and learn more about order of operations.

http://cemc2.math.uwaterloo.ca/mathfrog/english/kidz/order.shtml