How do you evaluate #7( 7+ 5\cdot 1) + 4( 1+ 6)#?
1 Answer
Mar 8, 2018
Begin by evaluating the expressions inside the parentheses.
Explanation:
We have
When there are parentheses, always work from the inside out.
Here, you need to do the multiplication first, then the addition. Doing this, we get:
Lastly,
When doing arithmetic, the order of operations you need to follow is:
Parentheses first
then Exponents
then Multiplication and Division
lastly, Addition and Subtraction.
An abbreviation for the order of operations is PEMDAS :
A way to remember it is
Please Excuse My Dear Aunt Sally.