Expressions and Equations Vocabulary

What is a coefficient?

• An unknown number

• The number in front of a variable

• Terms with the same variable

• I have no idea...

Tags

CCSS.6.EE.A.2

What is a variable?

• A letter that stands for an unknown value

• X

• The little number in the superscript

• Answer to a division problem

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

What letter can NOT be used as a variable?

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OFF

What is a "term" in mathematics?

• A constant (like 3)

• A variable (like x)

• A constant, variable, or combination of both that are separated by + or -

Tags

CCSS.6.EE.A.2

 $3x^2+2x-6y+4x-11$  

How many terms are in the expression above?

• 3

• 4

• 5

• 9

Tags

CCSS.6.EE.A.2

What is a constant?

• A letter

• A number without a variable

• A combination of letters and numbers

• The answer to an addition problem

Which of the following are like terms?

• $3x,\ 8y$

• $4b,\ 9b^2$

• $2x,\ 5$

• $6f,\ 13f$

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

CCSS.6.EE.A.4

CCSS.6.EE.B.6

How is an expression different than an equation?

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What does it mean to simplify?

• Combine like terms

• Solve the equation

• Take out parts of the expression/equation that you don't want

Tags

CCSS.6.EE.A.3

What does it mean to "evaluate" an expression?

• Eliminate parts of the expression

• Look the expression over

• Plug in the given value for the variable and find a single numeric answer

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.2