Vocabulary
A mathematical phrase involving numbers and operation symbols, but no variables.
What is a numerical expression?
3x + 4y +2x + 7 - 5
5x + 4y + 2
3 (a - b)
3a - 3b
2y = 6
y = 3
|-103|
What is 103?
A symbol used to represent a quantity that can change.
What is a variable?
3a - 4a +17a + b - 44a
-28a + b
2x (3 + 4y)
6x +8xy
3/y = 25
y = 75
|1-10|
What is 9?
Consisting of numbers, variables, and operations.
What is a variable expression?
3xy - 4x -2y + 5xy + 10x -5y
8xy + 6x - 7y
-2(3 + 4y)
-6 - 8y
x + 7 = 50
x = 43
The smallest prime number.
What is 2?
A mathematical sentence that involves an = sign.
What is an Equation?
DAILY DOUBLE!!!!!!! 800 POINTS IF YOU GET IT CORRECT==== - 800 IF YOU GET IT INCORRECT
3x/3 - 4y *4 + 6y -33
x - 10y - 33
2x (3ab + 4)
6xab +8x
y - 10 = 30
y = 40
If you worked 8 hours a day, every day, for 3 weeks, how many hours did you work?
What is 168 hours?
To find a numerical value for an equation; "work it out and find an answer".
What is evaluate?
x + x + x + x -4x
0
DAILY DOUBLE!!!!!! 500 POINTS IF YOU GET IT CORRECT, -500 IF YOU GET IT INCORRECT!!!!!
4xyz (4 - 10ab)
16xyz - 40abxyz
100x = 100
x = 1
If you have 7 quarters, 6 dimes, 4 pennies, and 20 nickels in your pocket, how much money do you have?
What is $3.39