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Old 04-07-2011, 07:36 PM   #47
JeanieK
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Location: Council Bluffs Iowa
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Quote:
Originally Posted by Ellie May View Post
Okay, if M and D are equal, then it makes sense why it would be done left to right , but:

48/2(9+3)
48/2(12)
We still haven't gotten rid of the parentheses. So we can just pull 12 out and make it read 48/2x12 and ignore that the 12 is still in the ()?
Yes, you do the math that is in the ( ). Once thfat is done there is not longer fa nee for the parentheses. The order would be different if there were no ( )

48/2*9+3 Would give you a different answer because you would do the multiplication and division first and the addition last

48/2*9+3
48/2=24
24*9=288
216+3=219

See why the parentheses are important?
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