Following the ORDER OF OPERATIONS is important when solving math problems. If you solve the problem out of order, most likely you will arrive at the wrong answer.
Keep in my the acronym PEMDAS.
M- multiplication & D- division (FROM LEFT TO RIGHT)
A- addition & S- subtraction (FROM LEFT TO RIGHT)
When expressions have more than one operation, we have to follow rules for the order of operations:
- First do all operations that lie inside parentheses.
- Next, do any work with exponents.
- Working from left to right, do all multiplication and division.
- Finally, working from left to right, do all addition and subtraction.
Use the website listed below for examples and additional practice problems: