Combining Like Terms
Presentation
•
Mathematics
•
7th - 8th Grade
•
Hard
Joseph Anderson
FREE Resource
12 Slides • 19 Questions
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COMBINING
LIKE TERMS
* What are some key vocab words?
* How do you identify like terms?
* How do you "combine" like terms?
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VOCAB REVIEW
Expression
Term
Variable
Coefficient
Constant
Like Term
Combine Like Terms
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EXPRESSION
A "math problem" that may contain:
Numbers
Letters (variables)
Addition or Subtraction
Multiplication or Division
Exponents
It DOES NOT contain an = sign
(usually gets "simplified", not solved)
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Multiple Select
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TERM
The individual "parts" of an expression
Terms are separated by a + or - sign
The expression below has 4 TERMS:
4x - 2y + 5 - xyz
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Fill in the Blanks
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VARIABLE
The LETTER part of a term
'x' is the most commonly used
Represents an unknown value
The value of 'x' will vary/change from problem to problem
VARIABLE TERM - refers to the entire term that contains the variable
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Multiple Choice
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COEFFICIENT
A number connected to THE FRONT OF A VARIABLE TERM
Always include the sign...is it positive or negative?
Every variable has a coefficient, even if you can't see it
Think of the prefix: "co"
EXAMPLE: -2x + 5 - y + 3
The coefficients are: -2 and -1 (invisible)
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Multiple Select
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Multiple Select
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CONSTANTS
A number NOT connected to a variable
Always include the sign...is it positive or negative?
Constants can be whole numbers, decimals, or fractions
All constants are like-terms
EXAMPLE: -2x + 5 - y + 3
The constants are: +5 and +3
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Fill in the Blanks
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LIKE-TERMS
Have the EXACT SAME VARIABLE part
The exponents must also match
All constants are like-terms
Positive or negative has no effect
Only like-terms can be "combined"
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Multiple Select
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Multiple Select
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COMBINE
LIKE TERMS
Add or subtract matching pieces
Use the signs IN FRONT
Do NOT combine everything!
Do NOT change exponents!
WARNING: x + y does not become xy
It doesn't combine at all!
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Multiple Select
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Multiple Select
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Complete & submit your homework.
Show your work on the paper.
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COMBINING
LIKE TERMS
* What are some key vocab words?
* How do you identify like terms?
* How do you "combine" like terms?
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