

Monomials
Presentation
•
Mathematics
•
7th - 8th Grade
•
Hard
Joseph Anderson
FREE Resource
4 Slides • 10 Questions
1
Addition of Monomials
Like Monomials
Unlike Monomials

2
Something About Monomials
The Hidden Meaning -- monomials with the same literal coefficients are like monomials. Those with different literal coefficients are unlike monomials.
The Practical Application--- only like monomials or like terms can be combined. "Birds of the same feather flock together."
3
Addition of Monomials
Like monomials- are monomials with the same literal coefficients Ex.1. 2x + 3x = 5x Ex.2. -2x + - 3x = -5x Ex.3. 2x + -3x = -x
Unlike monomials are monomials with different literal coefficients
Ex.1. 2x + 3y = 2x + 3yCombination Ex.2. 7y + x + -3y + 4x = 4y + 5x
TAKE NOTE: Combine like terms and simply copy unlike terms.
4
Summary
Addition of Monomials
Addition of Monomials with Like Signs -- add the numbers. Then, affix the common sign.
Addition of Monomials with Unlike Signs - subtract the numbers. Then, affix the sign of the term with the bigger absolute value.
Remember: Always combine like terms.
5
Multiple Choice
Find the sum of 9a and 3a.
12a
-12a
6a
-6a
6
Multiple Choice
Add the following integers: -3y, -5y, -10y and -2y.
-17y
-18y
-20y
-25y
7
Multiple Choice
Give the total: 38m + 10m + -5m + -3m = ____
40m
30m
20m
10m
8
Multiple Choice
What is the sum of 6xy + 5ab + 2xy + 2ab?
15xy
15ab
8xy + 7ab
8ab + 7xy
9
Multiple Choice
Find the sum: -3mn + -5ab + ab + 7mn.
-8mn + 6ab
8ab + -6mn
4mn + 4ab
-4ab + 4mn
10
Multiple Select
The sign of the sum of 8m + -12m is:
positive
negative
11
Multiple Select
When you add positive integers the result is:
positive
negative
12
Multiple Choice
When you add negative integers the result is:
negative
positive
13
Fill in the Blanks
If two integers with unlike signs are added, what is the sign of their sum?
Type answer...
14
Open Ended
What are the steps in adding monomials?
Addition of Monomials
Like Monomials
Unlike Monomials

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