« previous next »
Pages: [1]   Go Down

Author Topic: Simple Math Q , can you do it w/o machine help ?  (Read 1968 times)

0 Members and 1 Guest are viewing this topic.

Offline 754

  • Really Old Timer ...
  • *******
  • Posts: 29,050
Simple Math Q , can you do it w/o machine help ?
« on: March 21, 2011, 09:40:54 AM »
                         100 x 5/8...
 post your answer if you can do it without a calculator or computer..
Logged
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Bob Wessner

  • "Carbs Suck!"
  • Really Old Timer ...
  • *******
  • Posts: 10,079
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #1 on: March 21, 2011, 09:45:06 AM »
62.5
Logged
We'll all be someone else's PO some day.

Offline FunJimmy

  • Who you calling
  • Old Timer
  • ******
  • Posts: 3,798
  • Vancouver
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #2 on: March 21, 2011, 09:48:28 AM »
Logged
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline faux fiddy

  • Just becaus I'm the second post on the pissed off thread doesn't mean I'm an
  • Old Timer
  • ******
  • Posts: 4,810
  • bike in a box
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #3 on: March 21, 2011, 09:49:40 AM »
100/8 x5=

12.5 x5 =

12x5 +.5x.5=

60 + 2.5
Logged
^^^^^^^/l^^^^^^^^^^^^^^/l^^^
. . ______/ l_________________/  l
<'  '  '   '  o .  . . . . . . .................(
 ' VVVVV'   ')))))____>-''''''''''''''''''\  l
' . vvvv_   -              -                 \/

Offline Kframe

  • Hot Shot
  • ***
  • Posts: 579
  • Life is good!
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #4 on: March 21, 2011, 09:50:46 AM »
Yes, 62.5 is right.  
One-eighth of anything is .125 of it, so 1/8 of 100 is 12.5 so 5x12.5=62.5

Another way to think about it is a half plus an eighth.  50+12.5=62.5

-K
Logged
2007 Triumph Bonneville T100, ARK'd, Pods, TOR's, Napoleon's, Innovate G5 Air/Fuel Gauge, Ignition Relocation by D9, Stebel Nautilus, Avon Roadriders
1984 Honda Shadow VT700c, Stock
1974 Honda CB550K, In rehab
1986 Honda Helix

Offline Kframe

  • Hot Shot
  • ***
  • Posts: 579
  • Life is good!
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #5 on: March 21, 2011, 09:52:02 AM »
Logged
2007 Triumph Bonneville T100, ARK'd, Pods, TOR's, Napoleon's, Innovate G5 Air/Fuel Gauge, Ignition Relocation by D9, Stebel Nautilus, Avon Roadriders
1984 Honda Shadow VT700c, Stock
1974 Honda CB550K, In rehab
1986 Honda Helix

Offline markb

  • When I finish my current project I might be a
  • Master
  • *****
  • Posts: 1,615
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #6 on: March 21, 2011, 10:10:12 AM »
Even easier, 5/8 is .625, now just move the decimal point two to the right.  ;)
Logged
1969 CB750 sandcast #97 restored - Sold Restoration thread link
1969 CB750 sandcaxt #576 - Sold
1969 CB750 sandcast #1553 - Sold
1969 CB750 sandcast #1990 - Sold
1969 CB750 sandcast #5383 restored - Sold Restoration thread link
1970 CB750 K0 restored - Sold
2010 H-D Tri Glide Ultra Classic (Huh?)

Offline Kong

  • Expert
  • ****
  • Posts: 1,051
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #7 on: March 21, 2011, 02:34:20 PM »
6?   ???
Logged
2002 FXSTD/I  Softail Deuce
2001 Acura (Honda) CL Type-S
1986 Honda Rebel, 450
1978 Honda CB550K
1977 Honda CB550K

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 34,461
  • Central Texas
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #8 on: March 21, 2011, 05:17:34 PM »
5/8 = .625 x 100 = 62.5
Logged
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline MoMo

  • Really Old Timer ...
  • *******
  • Posts: 8,271
  • Ride like you're invisible
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #9 on: March 21, 2011, 07:39:31 PM »
1/8 is .125, so 5 times that is .625 and move the decimal accordingly
Logged

Offline 754

  • Really Old Timer ...
  • *******
  • Posts: 29,050
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #10 on: March 21, 2011, 09:22:08 PM »
Well there is 8 or 9 of us can still do math..

 Next month, I will explain how "chain pitch" X "number of links" can give you the length of a new or fresh chain..

..after reasding the main topic, seems like nobody thought of doing that..... ;)
Logged
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 34,461
  • Central Texas
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #11 on: March 22, 2011, 05:37:16 PM »
754 - did the question have anything to do w/KPH by any chance?
Logged
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline MasterChief750

  • Detonation
  • Expert
  • ****
  • Posts: 805
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #12 on: March 22, 2011, 07:07:43 PM »
bananas! jk 62.5 is what my brain said
Logged
1978 CB750 K - Project Red Headed Step Child
1976 CB750 K - Drag Bike
Some things i know, others i dont.
I AM THE STIG
Sam is THE STIG
he said i can be STIG3 tho

Offline brooze72

  • Talk to my friends here at SOHC4 if you need an
  • Expert
  • ****
  • Posts: 1,308
Re: Simple Math Q , can you do it w/o machine help ?
« Reply #13 on: March 22, 2011, 07:57:25 PM »
Us old farts can work in metric/imperial/american, whatever it takes!  Just takes awhile!
Logged
2011, 2012 & 2013 Godzilla Relay Rally Rider
"Hold on loosely...don't let go
 If you cling too tightly...you're gonna lose control"
1972 CB500K1 - restored rider
1981 CB650C - new project
Pages: [1]   Go Up
« previous next »