Ask Experts Questions for FREE Help!
Answer   ||    Advanced Search

Ask your question or search...
International Sites: Nederlandse experts vragen
User Name 
Password 
Join   Forgot password? 

Home > Education > Homework Help > Math & Sciences   »   3rd grade math

Question
 
 
#1  
Old Apr 17, 2008, 08:56 PM
ypl
New Member
ypl is offline
 
Join Date: Apr 2008
Posts: 1
ypl See this member's comment history on his/her Profile page.
3rd grade math

(8+1)+5=8+(?+5)

Reply With Quote
 
     

Answers
 
 
Old Apr 17, 2008, 09:03 PM   #2  
Jobs & Parenting Expert
Wondergirl is offline
 
Wondergirl's Avatar
 
Join Date: Jun 2007
Location: Chicago - western suburbs
Posts: 8,009
Wondergirl See this member's comment history on his/her Profile page.Wondergirl See this member's comment history on his/her Profile page.Wondergirl See this member's comment history on his/her Profile page.Wondergirl See this member's comment history on his/her Profile page.Wondergirl See this member's comment history on his/her Profile page.Wondergirl See this member's comment history on his/her Profile page.Wondergirl See this member's comment history on his/her Profile page.Wondergirl See this member's comment history on his/her Profile page.Wondergirl See this member's comment history on his/her Profile page.
First, what is 8+1+5?

Comments on this post
adsfjlahsdflkab disagrees: umm this is a sucky answer how about sayin" answer the question in the bracket first!"
Perito agrees: equalizer - It's one way to start; not necessarily the best.
  Reply With Quote
 
     
 
 
Old Apr 18, 2008, 06:54 AM   #3  
Junior Member
iamthetman is offline
 
Join Date: Oct 2006
Posts: 104
iamthetman See this member's comment history on his/her Profile page.
8+1+3=14
1+3+8=14
3+8+1=14

8+(1+3)=14
(8+1)+3=14
1+(3+8)=14
(1+3)+8=14
3+(8+1)=14
(3+8)+1=14

Notice that addition is commutative!

Comments on this post
adsfjlahsdflkab agrees: wow! you actually showed them how to do it! unlike the other person!
  Reply With Quote
 
     
 
 
Old Sep 24, 2008, 03:33 PM   #4  
Junior Member
jennysolano18 is offline
 
jennysolano18's Avatar
 
Join Date: Jul 2008
Posts: 36
jennysolano18 See this member's comment history on his/her Profile page.
(8+1)+5=8+(1+5)
8+1=9 1+5=6
9+5=14 14=6+8
14=14
  Reply With Quote
 
     
 
 
Old Oct 4, 2009, 12:45 PM   #5  
Junior Member
mathwiz3502 is offline
 
mathwiz3502's Avatar
 
Join Date: Oct 2009
Location: Atlanta, GA
Posts: 42
mathwiz3502 See this member's comment history on his/her Profile page.
1 because of the associative property
(in alll addidion or all multiplication paranthesis
do not matter)
  Reply With Quote
 
     
 
 
Old Oct 5, 2009, 08:34 AM   #6  
Ultra Member
Unknown008 is offline
 
Unknown008's Avatar
 
Join Date: Nov 2007
Location: Mauritius
Posts: 2,947
Unknown008 See this member's comment history on his/her Profile page.Unknown008 See this member's comment history on his/her Profile page.Unknown008 See this member's comment history on his/her Profile page.
Wait mathwiz3502, multiplication including parenthesis does matter, in that sense:

  Reply With Quote
 
     
 
 
Old Oct 8, 2009, 06:54 PM   #7  
Ultra Member
morgaine300 is offline
 
Join Date: Feb 2008
Location: USA
Posts: 3,683
morgaine300 See this member's comment history on his/her Profile page.morgaine300 See this member's comment history on his/her Profile page.
adsfjlahsdflkab, considering that you are new here, with one post, which is a question and not an answer to anything... let me explain a little something before you neg your way right out of this place...

No one here can possibly know what a poster does or does not already understand. Because most of the time they don't say. They post a problem. There could be 4 steps to something and they've already solved the first 3 and we'd have no clue. So we just have to start somewhere. Wondergirl started in one place; iamthetman started in a different place. Neither of them actually did or did not solve anything... they just "started" some place.

If you brought your mind-reading cap with you, we'd appreciate if you'd share it with the rest of us.
  Reply With Quote
 
     

Your Answer
Email me when someone replies to my answer
Join Login



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes
Ask your question or search...



Similar Threads
6th grade math on probabilities
(0 replies)
8th grade math
(1 replies)
5th grade math
(3 replies)
5th grade math-equivalent fractions-diagonal grid
(0 replies)
5th grade, late assingments, math! what shuld i do?
(5 replies)

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread

Advanced Search

Bookmarks





Copyright ©2003 - 2009, Ask Me Help Desk.
All times are GMT -8. The time now is 05:33 AM.