(42 - 8) - 4 / 2
6
List two pairs of inverse operations
Addition and Subtraction
Multiplication and Division
Evaluate ab2 if a=5 and b=-2
20
A mathematical phrase made up of numbers and/or variables that does NOT contain an equal sign
Expression
-5(x - 2) + 6(2x - 4) = 0
x = 2
How do you find the perimeter of a rectangle?
How do you find the area of a rectangle?
Perimeter: Add up all 4 sides
Area: Multiply length by width (A=lw)
6 - (-m - 10) = 20
m = 4
Simplify by Combining Like Terms:
4x2 + 6x - 1 + 2x2 - 3x + 5
6x2 + 3x + 4
Identify the variable(s), coefficient(s), and constant(s) of the following expression:
5a - 2b +3
Variables: a, b
Coefficients: 5, -2
Constant: 3
7k - 8 + 2(k + 12) = 52
k = 4
Identify the variable(s), coefficient(s), and constant(s) of the following expression:
-3x2 - y + 9z
Variables: x, y, z
Coefficients: -3, -1, 9
Constant: None