Quantcast Introductory 42 - XP Math - Forums


XP Math Home Sign Up FREE! | Sign In | Classroom Setup | Common Core Alignment PDF Version

Go Back   XP Math - Forums > Mathematics > Math Challenges

 
 
Thread Tools Display Modes
Old 07-24-2010   #1
pineapple74
 
pineapple74's Avatar
 
Join Date: May 2010
Posts: 60
Default 42

Using the numbers 1-15 and using the operations only addition and subtraction. Can you get the answer to equal 42.

First person to get it gets 25 points and the second person gets 10 points.

I must see all work.
pineapple74 is offline  
Old 08-01-2010   #2
pineapple74
 
pineapple74's Avatar
 
Join Date: May 2010
Posts: 60
Default It can...

Quote:
Originally Posted by pineapple74 View Post
Using the numbers 1-15 and using the operations only addition and subtraction. Can you get the answer to equal 42?
First person to get it gets 25 points and the second person gets 10 points.

I must see all work.
It can be done.
pineapple74 is offline  
Old 08-10-2010   #3
jimjim

 
jimjim's Avatar
 
Join Date: May 2009
Posts: 370
Default

42-14+answer=42
jimjim is offline  
Old 08-10-2010   #4
pineapple74
 
pineapple74's Avatar
 
Join Date: May 2010
Posts: 60
Default No.

Quote:
Originally Posted by jimjim View Post
42-14+answer=42
You must use all the numbers.
__________________
Nothing is impossible
pineapple74 is offline  
Old 11-12-2010   #5
choli1996
 
choli1996's Avatar
 
Join Date: Nov 2010
Posts: 20
Default

Quote:
Originally Posted by pineapple74 View Post
Using the numbers 1-15 and using the operations only addition and subtraction. Can you get the answer to equal 42.

First person to get it gets 25 points and the second person gets 10 points.

I must see all work.
14+15=29+10=39+3=42 right?
choli1996 is offline  
Old 11-22-2010   #6
Triboon
 
Triboon's Avatar
 
Join Date: Nov 2010
Posts: 1
Question Question

Quote:
Originally Posted by pineapple74 View Post
Using the numbers 1-15 and using the operations only addition and subtraction. Can you get the answer to equal 42.

First person to get it gets 25 points and the second person gets 10 points.

I must see all work.
Do you have to use all numbers?




ReplyQuickly Please
Triboon
Triboon is offline  
Old 01-13-2011   #7
jmw106462

 
jmw106462's Avatar
 
Join Date: Feb 2010
Posts: 388
Default

42 correct?!
__________________
Please refrain from sending me frivolous PM's
jmw106462 is offline  
Old 06-29-2011   #8
Pi=
 
Pi='s Avatar
 
Join Date: May 2011
Posts: 86
Default Correct answer

1 + 2 + 3 + 4 - 5 + 6 + 7 - 8 + 9 + 10 - 11 + 12 + 13 + 14 - 15 = 42
Pi= is offline  
Old 08-04-2011   #9
Jonathan W
Guest
 
Posts: n/a
Cool

I think Pi= is correct!

Last edited by Jonathan W; 01-17-2012 at 05:39 PM..
 
 

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:18 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
XP Math