If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Lesson 4: Order of operations

# Order of operations examples: exponents

Exponents are near the top of the food chain when it comes to order of operations. Let's do some examples together. Created by Sal Khan.

## Want to join the conversation?

• I have a question. At , Sal says we have multiplication and division. He proceeds to do the division first. 81 / 9 = 9. Shouldn't you do the multiplication first? 5 * 81/9? Working left to right? Because there are no Parentheses and there are no exponents. In the first video "Intro to order of operations" Sal states that you should work left to right when mult./div. and add/sub.?
• With PEMDAS multiplication and division are of equal importance in order of operations. If you multiply by the fraction 81/9 you would get the same answer. The reason Sal divided first was because it made the problem easier to solve, because 5 times 9 is easier than 5 times 81/9. If you don't believe me try it on your calculator and you will get the same answer either way.
• Having trouble trying to solve this
7+8(15-9) exponent of 2
• 7+8(15-9) with the exponent of 2 right? first follow BEDMAS/PEMDAS or whatever order of operations you use, first comes brackets/ parentheses so you solve 15-9 which is 6 so it should be 7+8*6 with still the exponent of 2 oh and btw its multiplication because if there is no operation there and there is a bracket beside the number that is basically the multiplication sign! anyways moving on exponent goes next so since 6 with the exponent of 2 is 36, you should write 7+8*36 then you simple multiply 8 * 36 that gets you 288 so 7+ 288 will equal to 295. hopefully that helped you if not srry im not that good at explaining things XD but the answer should be 295 :)
• Would like more examples like these
• You can call this Please Escape My Dead Anaconda Snake, this is a very funny way. Its my favorite one.
• you mean play escape the dyinng anaconda snake
• I made up this one Please Eat My Delicious Artichoke Soup
• I didin't learn about exponents yet so that makes doing the exercises much difficult does anyone where i could learn that
• I have a question you see the 1+5*81/9,what do we do with the 81?
• I dont think he is going to answer you, because the video is kinda old.
• why is the distributive property not used for the ones with exponents and parenthesis?