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Math Word Problems - GED, PSAT, SAT, ACT, GRE Preparation
4.20 Order of Operations

When you have more than one arithmetic operation, use the following rules to decide on the order in which you should perform the operations:
  1. First perform any calculations inside parentheses.
  2. Next perform all multiplications and divisions, working from left to right.
  3. Lastly, perform all additions and subtractions, working from left to right.
P E M D A S

Letters in PEMDAS stand for:
P - Parenthesis
E - Exponents
MD - Multiplication or Division from left to right
AS - Addition or Subtraction from left to right
The following phrase helps students remember the PEMDOS rule further:
Please Excuse (My Dear) (Aunt Sally).

Example : Solve (9 + 7) × 2 + 4 × 5
Solution :
=(9 + 7) × 2 + 4 × 5
=16 × 2 + 4 × 5
=32 + 20
Answer: 52


Directions: Use the above rules for order of operations and find the correct answers to the following questions. Also write at least ten examples of your own.
Q 1: 7 x (7 - 7) =
Answer:

Q 2: (7 x 7) - 7 =
Answer:

Question 3: This question is available to subscribers only!

Question 4: This question is available to subscribers only!


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