Basic Mathematical Expressions

What is a number decreased by seventeen?

• n + 17

• n - 17

• 17 + n

• 17 - n

u decreased by 17

• 17 - u

• u - 17

• u + 17

• u ÷ 17

Which of the following expressions contains a variable?

• 7+3

• 144÷12

• 7 + 15n

• 6(5)

Which phrase describes this expression 16-y

• The quotient of 16 and y

• y added to 16

• the product of 16 and y

• y less than 16

Identify a constant in the expression
3x + 2y + 7

• 3

• 2y

• 7

• 2

How many terms are in the expression
3x + 2y + z

• 5

• 2

• 4

• 3

Identify the variables in the expression
3x +  9

• x

• y

• 9

• 3x

How many terms are in the expression
3a + 2b + c + 100

• 3

• 4

• 5

• 6

A number with no variable attached is called a  _____

• coefficient

• constant

• variable

• term

The number before a variable is the _____.

• term

• constant

• coefficient

• variable