Diplomatic International School

Studying forum of the D.I.S. school in Riyadh
 
HomeCalendarGalleryFAQSearchMemberlistUsergroupsRegisterLog in
Poll
How you feel with the forum?
It is excellent
65%
 65% [ 28 ]
It is a step to the right way
23%
 23% [ 10 ]
It needs major enhancements
9%
 9% [ 4 ]
It is not neccessary
2%
 2% [ 1 ]
I don't know how to use it!
0%
 0% [ 0 ]
Total Votes : 43
Latest topics
» Meet The Spartans Dual Audio Eng Hindi
Sun Jun 08, 2014 7:12 am by trudwin

» Lynda.com_Learning_Dreamweaver_4-adds
Sat Jun 07, 2014 9:41 pm by trudwin

» Lynda.com_Learning_Dreamweaver_4-adds
Sat Jun 07, 2014 9:40 pm by trudwin

» Video Seks Brunei
Sat Jun 07, 2014 2:00 pm by trudwin

» FAKE.WEBCAM.7.3.FULL.KEYGEN.WORKEDFAKE.WEBCAM.7.3.FULL.KEYGEN.Wdcus
Sat Jun 07, 2014 12:41 am by trudwin

» TreeSize Professional V5.3.4
Thu Jun 05, 2014 11:11 pm by trudwin

» Voxengo Elephant VST V2.6 Incl KeyGen-BEAT
Fri May 30, 2014 2:07 pm by trudwin

» EJay DJ Mixstation 3 -
Fri May 30, 2014 10:54 am by trudwin

» Ancient Secrets Mystery Of The Vainishing Bride Setup
Thu May 29, 2014 6:47 am by trudwin

Keywords
Log in
Username:
Password:
Log in automatically: 
:: I forgot my password

Share | 
 

 new .......new...... the rule of number 7

Go down 
AuthorMessage
maths coordinator

avatar

Posts : 113
Join date : 2010-01-28
Location : Deplomatic International School

PostSubject: new .......new...... the rule of number 7   Sat Feb 13, 2010 7:40 am

Test for Divisibility by 7
- Double the last digit and subtract it from the remaining leading truncated number. If the result is divisible by 7, so will be the number
Example: 4991
Steps:
499 - 2(1) = 497
49 - 2(7) = 35
Since 7|35, the number is divisible by 7

Maths coordinator sunny
Back to top Go down
View user profile
 
new .......new...... the rule of number 7
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
Diplomatic International School :: Scientific subjects :: Math. Section :: Grade 6-
Jump to: