Gas vs PSD
Postmaster
Joined: Apr 2006
Posts: 3,524
Likes: 2
From: CA Bay Area
Man you have a very low opinion of americans. 41/64 > 5/8 by 1/64th. That is a lot easier to do in the head for most than figuring. Which is larger 3/64 or .225. Which we can do 2 different ways. Change the dec to fraction or fraction to dec. So what you have is 3÷64=.047 or .225/1000=1/4 3/64<.225. This is elementry math. .
Just as above sample shows -the system calls for making mistakes.
In metric 1km=1000m=10,000cm=100,000mm
No math necessary and not a big margin for making errors.
BTW, what is the lug nut on F450? I am using 13/16" but it is pretty tight. I have a feeling that it should be metric. Anybody remembers the torque from the top of the head?
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
Really?
Just as above sample shows -the system calls for making mistakes.
In metric 1km=1000m=10,000cm=100,000mm
No math necessary and not a big margin for making errors.
BTW, what is the lug nut on F450? I am using 13/16" but it is pretty tight. I have a feeling that it should be metric. Anybody remembers the torque from the top of the head?
Just as above sample shows -the system calls for making mistakes.
In metric 1km=1000m=10,000cm=100,000mm
No math necessary and not a big margin for making errors.
BTW, what is the lug nut on F450? I am using 13/16" but it is pretty tight. I have a feeling that it should be metric. Anybody remembers the torque from the top of the head?
On 04s lugs are 13/16{21mm. The torque is 150lbs{200nm
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
What's my case? That fractions isn't hard to do? It takes just a second to see what unit is larger than the other?they where his examples. Easy examples I might add.
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
The reason she's having trouble grasping metric is because it's SO SIMPLE. Kids get taught fractional measurements and decimals from the time they're 6, so they are looking for the catch, or try to equate the metric into standard for relation. If you tell someone to go get a 1lb of beef, but order it in metric weight, they'll usually come back with 2.2lbs of it, instead of just ordering 1/2 a kilo of it. I wish we would go to metric. France finally got something right.
Elder User
Joined: Jan 2010
Posts: 590
Likes: 0
If she doesnt get it, then she isn't trying. Metric is very simple.
Large and Small Numbers - Metric Prefixes
Large and Small Numbers - Metric Prefixes
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
If she doesnt get it, then she isn't trying. Metric is very simple.
Large and Small Numbers - Metric Prefixes
Large and Small Numbers - Metric Prefixes
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Elder User
Joined: Jan 2010
Posts: 590
Likes: 0
Its all 10's. If you know the order, IE m, dm, cm, mm then it is easy. 3 down, so 10*10*10 or 1000 mm in a M.
All she really needs is the order on both sides, and to know how to multiply 10's and she will be set.
All she really needs is the order on both sides, and to know how to multiply 10's and she will be set.
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
10mm=1cm
10cm=1dm
10dm=1m
1000m=1km
So working w/ mm all you to do is x10 however many places.
How the teacher teachs and make her do it is
1km=1000m kilo means 1000
10dm=1m. Deci means 10
100cm=1m cent means 100th
1,000,000=1m milli means millionth
Then ask how many meter is 132 cm? She just can't keep straight what the order is.
Elder User
Joined: Jan 2010
Posts: 590
Likes: 0
get her to write it out on a note card from the top to the bottom. kilo, hecto, deca, base, deci, centi, milli. then she can look at the card for the unit she is in and the unit she is going to and thus just count down or up the card and find how many times to move the decimal.
Posting Guru
Joined: Aug 2008
Posts: 2,313
Likes: 0
From: Sunny, Snowy, CO
Well how I tought her was:
10mm=1cm
10cm=1dm
10dm=1m
1000m=1km
So working w/ mm all you to do is x10 however many places.
How the teacher teachs and make her do it is
1km=1000m kilo means 1000
10dm=1m. Deci means 10
100cm=1m cent means 100th
1,000,000=1m milli means millionth
Then ask how many meter is 132 cm? She just can't keep straight what the order is.
10mm=1cm
10cm=1dm
10dm=1m
1000m=1km
So working w/ mm all you to do is x10 however many places.
How the teacher teachs and make her do it is
1km=1000m kilo means 1000
10dm=1m. Deci means 10
100cm=1m cent means 100th
1,000,000=1m milli means millionth
Then ask how many meter is 132 cm? She just can't keep straight what the order is.
