YorkieTalk.com Forums - Yorkshire Terrier Community - View Single Post - Okay Math Geniusues... What's 48÷2(9+3) ?

MaddiesMommie · 04-08-2011, 08:44 AM

I actually teach this skill in 5th grade. YES, PEMDAS is used ANY time you have multiple operations however, what most people forget is even though multiplication and division are at the same level and the left to right rule applies, parentheses () outrank division.

This problem is written with the 2 with the parentheses, therefore, the 2 must stay with them until it is complete. This indicates that the values must be multiplied before doing any other operation.

48÷2(9+3) is different than 48÷2X(9+3)
this answer =2 this answer is =288
The 2 beside the ()
means you must X
2 by the answer inside
to be finished.

Now, thanks for making me work on my last day of spring break.

04-08-2011, 08:44 AM	#83
MaddiesMommie LoveMy2 Donating Member Join Date: Feb 2009 Location: East Tennessee Posts: 4,060	I actually teach this skill in 5th grade. YES, PEMDAS is used ANY time you have multiple operations however, what most people forget is even though multiplication and division are at the same level and the left to right rule applies, parentheses () outrank division. This problem is written with the 2 with the parentheses, therefore, the 2 must stay with them until it is complete. This indicates that the values must be multiplied before doing any other operation. 48÷2(9+3) is different than 48÷2X(9+3) this answer =2 this answer is =288 The 2 beside the () means you must X 2 by the answer inside to be finished. Now, thanks for making me work on my last day of spring break.