Expressions (vocab) of Expressions
What is a variable?
A letter standing in for a number
What does LCM stand for?
Least Common Multiple
Finn does 25 sit-ups y times per week, how many sit-ups does she do in one week?
25(7) = x
175
Evaluate 3n + 4 when n = 3
13
What does "PEMDAS" stand for?
What is Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction?
In the equation 6x + 7 = 14, can you name an expression?
6x + 7 OR 14
Write an expression "three less than a number d"
What is d - 3?
Jacoby's sister is 5 feet tall. Mayze's cousin is 6 feet, 3 inches tall. How many inches taller is Mayze's cousin?
5(12) + x = 6(12) + 3
x=15
8x + 4 when x = 5
44
Opposite operation is called the _______ operation.
Inverse
Individual pieces of an equation, separated by addition or subtraction
What is a term?
What does GCF stand for?
What is Greatest Common Factor?
Georgia is babysitting. She makes $11 per hour and works 3.5 hours. How much $ does she make?
11 (3.5) = x
What is $38.50?
How would you simplify the expression below?
2(x + 6)
What is 2x+12?
When you divide fractions, what is the phrase/rule some use?
What is Keep, Change, Flip!?
A numerical or constant factor that multiplies a variable in an algebraic term
Coefficient
Simplify the expression.
3x + 5x -30
8x-30
Grecy has 40 stickers and 32 lollipops. She wants to give her friends the same number of stickers and the same number of lollipops with none left over. What is the greatest number of friends she can give them to.
What is 8 friends?
Solve the equation:
13.65 = h + 4.88
What is h = 8.77?
What does x stand for in this equation?
5x = 25
x is the variable
x = 5
What is a dependent variable
A quantity whose value depends on, or is determined by, changes to other variables within an equation.
Simply the expression
3x + 5 +1 - 2x + 1x
2x + 6
Sofia withdrew $80 from her bank account. She now has $30.45 in her account. How much did she have to start with?
X - 80 = 30.45
What is $110.45?
One pound of limes cost $1.79. How much does p pounds of limes cost?
What is 1.79p?
In the equation 3X + 4 = 12, what is the coefficient?