Transcript Inverse Operations (x&/)

Inverse Operations (x&/)
By: Me
Math Period 2
Benchmark:
Topic #22:
Benchmark:MA.7.2.3: Apply inverse
relationships between addition and
subtraction, and multiplication and
division, to solve one- step problems.
Definition:
Operations that “undo” each
other. Multiplying and dividing
are inverse operations and so
are addition and subtraction.
Example/ Drawing/ Formula:
First you do the inverse of multiplying 3 which is dividing 3.
That cancels out. Then I do 6/3, which equals 2. Next, you take the 9x and
divide by 9 which now means you are left with x. Now you bring the 2 down
and divide 2 and 9 (2/9). Therefore, x= 2/9.
Equation: 9x * 3 = 6
9x * 3 = 6
/3 /3
9x
=2
/9
/9
x = 2/9
Create A Question:
Can you solve this
equation?
My Question:
14x / 4 = 7
Solution to question:
x= 2
How did I get 2?
Here… look at this
Explanation To Question:
What you have to do is do the
inverse of dividing 4 which is
multiplying 4. That cancels out. Then
you do the same to the other side.
7x4=28. Bring that down(28). Next,
14x/14equals it canceling out. X is left
over. So, 28/14=2. Therefore, x=2.
14x / 4 = 7
Credits:
I would like to thank:
Google (for the images)
Mr. Imamura (for the math)
Kahiki ( for helping me to put the image
as the background)
Mom( for letting me use the computer)
Thank you for watching!!!