Vocabulary
What is the difference between an equation and an expression?
An equation has an equal sign and an expression does not.
What is a product?
Answer to a multiplication problem.
4 more than n
n + 4
3n n = 9
27
Translate into words.
6 + n=
n more than 6
What 3 things must an expression have?
a variable, an operation, and a number
What is a quotient?
Answer to a division problem.
the product of 12 and y
12y
84/y
y=4
21
Write an expression for 9 less than number.
n-9
What is a numerical expression?
An expression with all numbers, no variables.
What is a difference?
Answer to a subtraction problem.
9 less than x
x-9
9 less than w
w=10
1
Write an expression for 4 times a number plus 8
4n + 8
Give me an example of a variable.
any letter (x)
What operation do you perform when looking for a sum?
adding
the quotient of t and 9
t /9
twice the letter p
p= 4
8
$2.50c
What does inverse mean?
The opposite (the opposite of addition is subtraction).
adding- maybe multiplication
4 more than the product of t and 9
t9 + 4
23.3 + 4 =
27.3
write an expression for;
subtract a number n from 10
10-n