Order of Operations
Solve 3+2-1
4
Define variable.
A letter or symbol that represents an unknown number.
Rewrite "the sum of a number and 2" as an algebraic expression.
I spy... the terms in the expression
7h+3
7h, 3
Write the expression using exponents
b⋅b⋅b
b3
Solve 15-2x4
7
What is the vocabulary word for:
A term with no variable, just a number
Constant term
Write an expression for the following: the quotient of 12 and x.
12 ÷ x or 12/x
I spy... the constants in the expression
7h+3
3
Evaluate 25
What is 32
Solve: 3 + 81/9
12
What is the vocabulary word for:
A collection of numbers, variables, operation symbols, and grouping symbols.
Algebraic Expression
Rewrite "3 less than a number" as an algebraic expression.
Hint: Why are the words "less than" special?
x - 3
I spy... the numerical coefficients in the expression
7h+3
7
Write the expression using exponents
8⋅8⋅8⋅8⋅8
What is 85
Evaluate: 10 x (4+5) - 12
78
Define coefficient.
A numerical factor in an algebraic term
Rewrite "the sum of twice a number and 5" as an algebraic expression.
2x + 5
I spy... the numerical coefficients in the expression
g+12+9g
9 and 1
Write the expression using exponents
(5.2)(5.2)(5.2)(5.2)
(5.2)4
Evaluate: [3(4-2)]+ 3 x 7
27
What is the vocabulary word for:
Terms with the same variable raised to the same power.
Like terms or Similar terms
Rewrite "6 less than the quotient of a number and 2" as an algebraic expression.
x/2-6?
I spy... the constant term in the expression
5c+7d
None
What is the missing number?
3? = 81
What is 4?