Vocabulary

Operations

Expressions

Solve for n

Surprise!

100

What is the difference between an equation and an expression?

An equation has an equal sign and an expression does not.

100

What is a product?

Answer to a multiplication problem.

100

4 more than n

n + 4

100

3n n = 9

27

100

Translate into words.

6 + n=

n more than 6

200

What 3 things must an expression have?

a variable, an operation, and a number

200

What is a quotient?

Answer to a division problem.

200

the product of 12 and y

12y

200

84/y

y=4

21

200

Write an expression for 9 less than number.

n-9

300

What is a numerical expression?

An expression with all numbers, no variables.

300

What is a difference?

Answer to a subtraction problem.

300

9 less than x

x-9

300

9 less than w

w=10

1

300

Write an expression for 4 times a number plus 8

4n + 8

400

Give me an example of a variable.

any letter (x)

400

What operation do you perform when looking for a sum?

adding

400

the quotient of t and 9

t /9

400

twice the letter p

p= 4

8

400

Write an expression for the cost of c "cokes" when each coke is $2.50.

$2.50c

500

What does inverse mean?

The opposite (the opposite of addition is subtraction).

500

If you are looking for a total, what operation would you perform?

adding- maybe multiplication

500

4 more than the product of t and 9

t9 + 4

500

23.3 + 4 =

27.3

500

write an expression for;

subtract a number n from 10

10-n

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