Order of Operation
In the equation below, what operation should come first?
3^2 + 8
3^2
A mathematical sentence with an equal sign is called what?
An Equation
In the equation below, what would be the first step you would do in order to simplify the expression?
1x + 3 + 3x
Combine like terms
Where would x = 3 go if it was a solution to the equation, 8 + x = 11
In the place of the x
Simplify 2x + 3y + x = ?
3x + 3y
In the equation below, what order of operations will need to be performed?
(1+8) + 3 * 9
Parentheses, Multiplication, Addition
What is the name of the 3 in the equation below?
7x + 3 = 24
Constant
How will you figure out what the inverse of a number in an equation?
Ex: 4 - 3 = 1
Look at the sign in front of it
Is x = 5 the solution to the equation below?
x + 9 = 14
Yes
2 ice cream + 3 hot dogs + 2 hamburgers + 1 ice cream - 2 hot dogs =?
1 ice cream + 1 hotdog + 2 hamburgers
What does the E stand for in the acronym PEMDAS?
Exponents
What is the name of the 9 in the equation below?
9d + 3 = 21
Coefficient
What would be the first thing you would do to test the solution x = 3 in the equation below?
6 + x = 9
Rewrite the equation and substitute the 8 for x
Is x = 9 a solution in the equation, 3x = 36?
No
Simplify 3(x + 2x)
3(x) + 3(2x)
3x + 6x = 9x
If the remaining operators are multiplication and division what would you do?
Solve Left to Right
Evaluation
What are you going to do if you do not remember the steps to a math problem?
LOOK IN YOUR JOURNAL!
Solve 2x + 5y when x = 2 and y = 3.
2x + 5y = 21
Simplify 2x2 + x2
3x2
Grouping
What is the name of a set of rules that are known to true in Math and it defines the relationship between two numbers?
Property
What would you do to the equation, 7x + 3x = 20 after you had combined like terms?
The inverse of multiplication
10x = 20
x = 20/10
Solve, x - x + y when x = 1 and y = 5
1 - 1 + 5 = 5
Simplify x2 + 3y - 5x + 7x - 2y
x2 + y + 2x