Inverses
What is the inverse of addition?
Subtraction
What is the first step of the order of operations, in reverse order?
Addition and Subtraction
Solve: x + 3 = 7
x = 4
Solve: 2x+ 9 = 33
x = 12
What is an inverse? Give an example.
The opposite operation.
What is the inverse of subtraction
Addition
What is the second step of the order of operations, in reverse order?
Multiplication and Division
Solve: x - 6 = 10
x = 16
Solve: 3(x+7) = 24
x = 1
What is a variable? Give an example.
A placeholder for an unknown number.
What is the inverse of multiplication?
Divison
What is the third step of the order of operations, in reverse order?
Exponents
Solve: 2x = 16
x=8
Solve: 5( x + 3) = 60
x = 9
What is an expression? Give an example.
A combinations of variables and constraints.
What is the inverse of division?
Multiplication
What is the last step of the order of operations, in reverse order?
Parenthesis
Solve: x/3 = 12
x=36
Solve: 8 + 3x = 20
x = 4
What is an equation? Give an example.
When two expressions are equal to each other.
Miss Z wrote an equation x divided by 6, plus 10. This expression was equaled to 20.
What would you do to undo Miss Z's equation?
Subtract 10 then multiply by 6.
What is the order of operations?
Parenthesis
Exponents
Multiply/Divide
Add/Subtract
Solve: 5x = 5
x = 1
Solve: 2(x + 9) = 24
x = 3
What is a constant? Give an example.
A whole number.