Order of Operations
(4 - 2) X 5 - 1 X 5
5
x + 5 = 15
x = 10
5x + 10 = 50
x = 8
x + 3 = 3x - x - 4
x = 7
What does P.E.M.D.A.S. stand for?
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
30 - (2 X 2) + 15
40 - x = 19
x = 21
2x - 30 = -30
x = 0
(-6) - 4w = 3 + 5w
w = 1
What is the mathematical term for an unknown number labeled as a letter?
Variable
((13 X 2) + 4)/3
10
x / 3 = -30
x = -90
-2w + 19 = 17
w = 1
(-2r) + 3 - 4r = (-3)(2r - 1)
All real numbers
What is the difference between an expression and an equation?
Expressions are statements
Equations involve an =
18 - 2 X 3(4+12/6)
-18
3w = -150
-50
6x / 3 = -18
x = -9
7k + 10 - k = 4k + (7 X 5) + 2k
No Solutions
Daily Double Bonus (First team to answer the most gets 800 points)
Name as many quadrilaterals as you can. (There are 6)
Square, Rectangle, Rhombus, Parallelogram, Kite, Trapezoid