Quizizz Lesson: Parts of Expressions and Equations

Parts of an Expression

• Expression: A mathematical statement with at least one variable and/or numbers and operation symbols (Does NOT contain an "=" SIGN)

• Variable: A symbol/letter that takes the place of an unknown number

• Coefficient: A number multiplied by a variable.

• Constant: a number on its own, does NOT change, does NOT have a variable

Match

Match the following

Coefficients

variable

operators

exponent

Constance

• Coefficients

• variable

• operators

• exponent

• Constance

Multiple Choice

In the expression

$$5w^2\ -\ 6w\ +\ 13$$  , what are the - and + signs?

(go back the previous slides for help)

• variable

• coefficient

• constant

• operator

Multiple Choice

In the expression

$$5w^2\ -\ 6w\ +\ 13$$  , what are the 5 and the 6?

(go back the previous slides for help)

• variable

• coefficient

• constant

• operator

Multiple Choice

In the expression

$$5w^2\ -\ 6w\ +\ 13$$  , what are the w's?

(go back the previous slides for help)

• variable

• coefficient

• constant

• operator

Multiple Choice

In the expression

$$5w^2\ -\ 6w\ +\ 13$$  , what is 13?

(go back the previous slides for help)

• variable

• coefficient

• constant

• operator

Multiple Select

Select the coefficients of the expression: (there are only two)

$$3x^2\ -\ 14x\ +\ 8$$  

• -14

• 3

• 8

• 14

Parts of an Equation

• Equation: written as two expressions, connected by an equals sign ("=")

• Terms: the name given to a number, a variable, or a number & variable combined by multiplication,               (terms are parts of the expression separated by + or - signs)

Multiple Choice

How many terms are in the expression?

$$2a^3+\ 9a^2+\ 5a\ -\ 7$$  

• 3

• 4

• 5

• 7

Multiple Choice

What is the coefficient of the second term in the equation,

$$6y^2\ +\ y\ -\ 13$$  

• -13

• 0

• 1

• 6