
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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June 30th, 2019, 06:18 PM  #1 
Newbie Joined: Jun 2019 From: New York Posts: 22 Thanks: 0  Can you solve this math test?
A) 3 + 3 × 3  3 + 3=? B) 3 + 3 × (3  3) ÷ 3=? Is the answer for both A & B the same? Sent from my SMJ727T1 using Tapatalk Last edited by skipjack; July 1st, 2019 at 04:10 PM. 
June 30th, 2019, 06:29 PM  #2 
Math Team Joined: Jul 2011 From: Texas Posts: 2,980 Thanks: 1573  
June 30th, 2019, 07:33 PM  #3 
Math Team Joined: May 2013 From: The Astral plane Posts: 2,226 Thanks: 908 Math Focus: Wibbly wobbly timeywimey stuff. 
See here for order of operations. The reason this is so hard for many is that High School teachers (I don't know about Middle School) have tended to get away from using parenthesis properly. For example you often see on the different forums something like this: f(x)= 2x + 3/8x  5. This is intended to be f(x) = (2x + 3)/(8x  5), but as written is $\displaystyle f(x) = 2x + \dfrac{3}{8} x  5$ instead of $\displaystyle f(x) = \dfrac{2x + 3}{8x  5}$. I'm not blaming just the instructors... the students should be picking up on this as well. Dan 
July 1st, 2019, 02:28 AM  #4  
Newbie Joined: Jun 2019 From: New York Posts: 22 Thanks: 0  Quote:
Sent from my SMJ727T1 using Tapatalk Last edited by skipjack; July 1st, 2019 at 04:56 AM.  
July 2nd, 2019, 02:06 PM  #5 
Newbie Joined: Jun 2019 From: AZ, Seattle, San Diego Posts: 16 Thanks: 10  
July 2nd, 2019, 02:09 PM  #6 
Newbie Joined: Jun 2019 From: New York Posts: 22 Thanks: 0 
Hello, since I am new, where would be the best place to post questions? Sent from my SMJ727T1 using Tapatalk 
July 2nd, 2019, 04:55 PM  #7 
Senior Member Joined: Sep 2015 From: USA Posts: 2,500 Thanks: 1372  
July 3rd, 2019, 12:51 AM  #8 
Global Moderator Joined: Dec 2006 Posts: 20,823 Thanks: 2160 
Moved to Elementary Math.

July 3rd, 2019, 02:05 PM  #9 
Newbie Joined: Jun 2019 From: AZ, Seattle, San Diego Posts: 16 Thanks: 10  

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