Vocab
What is a Variable?
A. An alphabet or term that represents an unknown number or unknown value or unknown quantity.
B. A number representing an unknown value or quantity.
A. An alphabet or term that represents an unknown number or unknown value or unknown quantity.
The order of operations are the rules that tell us the sequence in which we should solve an expression with multiple operations. What is the first order?
A. Exponents
B. Mutiplication
C. Parentheses
C. Parentheses
Identify the variable:
Isaac bought X number of video games this week for his sleepover. Each video game cost $2 dollars. The tax is $1 per video game. The total cost for X number of video games was $12.
Answer: X
Inverse Operations is:
A. A pair of mathematical manipulations in which one operation undoes the action of the other (example: additing and subtraction or multiplication and divison)
B. A mathematical manipulations in which what one operation always increases the number of the other side. (example: no matter what, always add to both sides)
C. A mathematical manipulations in which what one operation always decreases the number of the other side. (example: no matter what, always subtract to both sides)
A. A pair of mathematical manipulations in which one operation undoes the action of the other (example: additing and subtraction or multiplication and divison)
The order of operations are the rules that tell us the sequence in which we should solve an expression with multiple operations. What is the second order?
A. Exponents
B. Mutiplication
C. Parentheses
A. Exponents
In addition to the variable, what other information do we know?
Isaac bought X number of video games this week for his sleepover. Each video game cost $2 dollars. The tax is $1 per video game. The total cost for X number of video games was $12.
Isaac bought X number of video games this week for his sleepover.
Each video game cost $4 dollars. The tax is $1 per video game.
The total cost for X number of video games was $12.
In algebra, distribution means to spread out terms equally across an expression. We refer to what we're doing as the distributive property. Why do we distribute?
A. To make the expression more difficult
B. It's a way of simplifying expressions
C. A way to solve for an expression instantly without doing the work
B. It's a way of simplifying expressions
The order of operations are the rules that tell us the sequence in which we should solve an expression with multiple operations. What is the third order?
A. Exponents
B. Mutiplication
C. Parentheses
B. Mutiplication
What is a possible equation for this work problem?
Isaac bought X number of video games this week for his sleepover. Each video game cost $2 dollars. The tax is $1 per video game. The total cost for X number of video games was $12.
WIsaac bought X number of video games this week for his sleepover.
Each video game cost $4 dollars. The tax is $1 per video game.
The total cost for X number of video games was $12.
X(2+1)=12
The order of operations are the _______ that tell us the sequence in which we should solve an expression with multiple operations.
A. variables
B. Inverse operations
C. Rules
C. Rules
The order of operations are the rules that tell us the sequence in which we should solve an expression with multiple operations. What is the forth order?
A. Exponents
B. Division
C. Parentheses
B. Division
For this word problem: "Isaac bought X number of video games this week for his sleepover. Each video game cost $2 dollars. The tax is $1 per video game. The total cost for X number of video games was $12."
We have an equation of X(2+1)=12
What is the FIRST order of operations we need to compelte?
Parenthesis
The order of operations are the rules that tell us the sequence in which we should solve an expression with multiple operations. What is the fifth order?
A. Exponents
B. Mutiplication
C. Addition and Subtraction (from left to right).
C. Addition and Subtraction (from left to right).
For this word problem: "Isaac bought X number of video games this week for his sleepover. Each video game cost $2 dollars. The tax is $1 per video game. The total cost for X number of video games was $12."
We have an equation of X(2+1)=12
The FIRST order of operations we need to compelte is parenthesis,
WHAT IS OUR NEXT STEP?