Card Set Information
Math Algebra Equations Review Questions Notes MoonRacer
Review the notes about Equations
Adding Integers of the same sign, find the _____
Adding Integers of different sign, find the _______.
Subtracting from a negative integer, ____ _____ _____ or _____/_____.
Adding Integers of the same sign, find the sum.
Adding Integers of different sign, find the difference.
Subtracting from a negative integer, copy change change or fence/bubble.
What is the order of Operations?
A? Less than B?
A? comes _____ in the problem
B? comes _____ in the problem.
A? comes second in the problem
B? comes first in the problem
Multiplying by fractions is cross ______.
When fractions are equal, you cross ________.
Multiplying by fractions is cross cancel.
When fractions are equal, you cross multiply.
To distribute, __________________________
Multiply the number out side of the parenthesis to the first term, then the second, and so on, until all the terms in the parenthesis are simplified. Now solve.
How do you check your answer?
1) Write the Original Problem
2) Plug in your answer
Review Question: How do you combine like terms?
Take each term and make sure that they have a + or - sign in front. Then, combine the parts that have the same last name. So 12x-14+23-7x=54 is the same as 5x+9=54.
If an answer to Identity, what does it mean?
The answer has and infinite number of solutions.
Review Question: How do you solve a word problem?
1) Read it
2) Understand it
3) Create a let statement
4) Write an eaquation/inequality
6) Check to see if it makes sense.
How do you solve a literal equation?
Act as if the variables are the same as normal numbers.
Review Question: What is the Commtative Property of Addition?
The value of the numbers will be the same if they are switched
Review Question: What is the Commutative Property of Multiplication?
The values will be the same if they are switched
Review Question: What is the Associative Property of Addition?
#'s in the parenthesis may be paired with another number
Review Question: What is the Associative Property of Multiplication?
The #'s in the parenthesis may be paired with another factor
Review Question: What is the Identity Property of Addition?
Any number plus 0 equal itself
Review Question: What is the Identity Property of Multiplication?
A number times one equals itslef
Review Question: What is the Inverse Property of Addition?
A number plus the negative version of itself will equal the identity element (0)
Review Question: What is the Inverse Property of Multiplication?
a x 1/a = 1
A number multiplied by it's multiplicative inverse is equal to the identity element (1)
Review Question: A binary operation is an operation that uses the main 4 and is represented by a ______.
Review Question: To find the inverse of an identity element, just plug in _______ (_________) _______ = ________ _______
Element (Operation) Inverse + Identity Element
Review Question: How do you find the identity element of a binary operation?
Find out where the chart looks the same. For Example:
A B C D
B D A C
D C B A
A B C D
C A D B
Review Question: How is a binary operation commutative
If it is commutative it means that A (operation) B is the same a B (operation) A.
C B A
A B C D
C A D B
Review Question: A Binary operation is closed if...
If the numbers along the top are equal to the numbers on the bottom
Review Question: The formula for Percent of Change is_______
Review Question: Greatest possible error is _________
1/2 of the measuring unit. So 12 cm gpe is 0.5 cm.
Review Question: Percent Error is_________
And Error in Measurement is ________
: gpe/actual measurement as a percent
E. in M.
: gpe/ actual measurement without a percent
Review question: How do you do a motion problem?
Draw a picture
Fill out a chart
Set up and equation
Solved The QUESTION boxed with unit.