When evaluating the following expression, which should you do first? 17- 15 + 5

Question

anonymous · Answer

you do subtraction first

jhannybean · Answer

PEMDAS

Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction

anonymous · Answer

PEMDAS

anonymous · Answer

well it gives me multiple choice so yea..
A.	Add 17 and 5
	B.	Add 15 and 5
	C.	Subtract 15 from 17
	D.	Subtract 15 and 5

anonymous · Answer

jhanny are you sure? remember subtraction and addition are interchangable

jhannybean · Answer

what order of operations are you doing when you have ( 15 + 5)?

jhannybean · Answer

according to pemdas, you'd have to add first @jairo330

anonymous · Answer

yeah but in pemdas, addition and subtraction intercgange and so do division and multiplication

jhannybean · Answer

really? I may have forgotten about that!

Interesting.

anonymous · Answer

@Jhannybean well thank you anyway! ;)

anonymous · Answer

I really suck at math! :/

jhannybean · Answer

Then @jairo330 is correct :) you would have to subtract first, then add.

jhannybean · Answer

I've totally forgotten about PEMDAS it seems...

anonymous · Answer

lol it happens to everyone at least once. but thank you!

anonymous · Answer

nah idk i might be wrong lol go with jhannys answer

anonymous · Answer

lol ok thank you both!

calculusxy · Answer

when you come up with both addition and subtraction in an equation, you have to go from left to right. this same method applies to multiplication and division.