Transcript Mathematics

Mathematics
Chapter Two Lesson Four
Order Of Operations
Mathematics Matrix Grant
Alyssa
Directions
• Step 1: You have to type a number sentence in a
row, for example:
285+93÷(3−2)x3x4²
PEMDAS
• Then you have to write
PEMDAS on top of the number
sentence. That means:
• Parentheses
• Exponents
• Multiplication
• Division
• Addition
• Subtraction
• An easy way to remember the
steps is by this saying:
Please Excuse My Dear Aunt
Sally.
Parentheses
Then you have to
rewrite the number
sentence until you get
to the parentheses.
Then solve what is in
the parentheses.
285+93÷1x3x4²
The 1 is the answer in
the parentheses.
You have to subtract
3-2. Which is 1.
Exponents
Then you have to
check if there is any
exponents. If there is
then you have to
solve.
285+93÷1x3x16
The 16 is the answer
for the exponents.
You have to do 4x4.
Which is 16.
Division
Then you have to check if there is division or
multiplication. Which ever one comes first in the number
sentence.
285+93x3x16
93 is the answer for division.
You have to do 93÷1. Which is 93.
Multiplication
Then you have to do multiplication.
285+279x16.
279 is the answer for the multiplication.
Then you have to multiply 93x3. Which is 279.
Multiplication Continued
Then you have to do
multiplication again
because there is still
multiplication in the
number sentence.
285+4464
4464 is the answer for the
other multiplication.
Then you have to multiply
279x16. Which is 4464.
Addition
• Now you have to solve what is left.
285+4464=
Answer
• Now you write the answer:
4749 is the answer for the problem.