Which of these sockets are in the right place? (If any)

[morqthana]

So you don't understand basic mathematics then

I do.

When I was at school half a century ago we learnt the very significant difference between square inches and inches squared

But in the intervening half century you seem to have forgotten what you learned.

I very much hope we can all understand the shape marked "1" (or for that matter any of the other numbered shapes) is a square of sides 1cm making it a 1cm square.
As 1x1 = 1 (apologies to those who did learn their times table) it can only be 1 square cm or 1cmx1cm which according to all the rules of mathematics I am aware of equates to 1cm squared or 1cm².

The numbers are always 1.

But 2x2≠2.

A square 2cm on a side is not 2 square centimeters.

2 square cm is not 2cmx2cm.

2cm squared is not 2cm², it is 4cm².

 

[JohnW2]

The same, aren't they? Both 72..

I think you need to seriously re-consider your arithmetic in relation to "6 dozen dozen".

 

[Harry Bloomfield]

I think you need to seriously re-consider your arithmetic in relation to "6 dozen dozen".

Explain if you please?

 

[SUNRAY]

I do.



But in the intervening half century you seem to have forgotten what you learned.




The numbers are always 1.

Yes you are correct

But 2x2≠2.

correct

A square 2cm on a side is not 2 square centimeters.

correct

2 square cm is not 2cmx2cm.

correct

2cm squared is not 2cm², it is 4cm².

Correct

 

[morqthana]

Explain if you please?

6x12x12=?

 

[SUNRAY]

Deleted as already answered

 

[JohnW2]

Explain if you please?

As morqthana has pointed out 6 x 12 x 12 is equal to 864, not 72.

 

[EFLImpudence]

I wondered why it was even thought of as a 'trick' question.

 

[morqthana]

Let's open another front

Write "a hundred thousandths of an inch" as a decimal fraction.

 

[SUNRAY]

But in the intervening half century you seem to have forgotten what you learned.

Please explain what I have forgotten.

 

[morqthana]

I wondered why it was even thought of as a 'trick' question.

Well it tricked Harry...

 

[SUNRAY]

Let's open another front

Write "a hundred thousandths of an inch" as a decimal fraction.

Are you looking for a decimal or a fraction?

 

[JohnW2]

Let's open another front
Write "a hundred thousandths of an inch" as a decimal fraction.

I was taught never to use expressions like that since (as I presume is the reason for you posting it), it is so easily misinterpreted, since "a hundred thousandths" and "a hundred thousandth" are so similar.

In fact, I was also taught that if one really 'had to" use such phrases, the latter should be hyphenated (i.e. "a hundred-thousandth"), to (perhaps!) reduce the risk of misinterpretation.

 

[JohnW2]

Are you looking for a decimal or a fraction?

As he wrote, a "decimal fraction". Are you not familiar with that term?

 

[SUNRAY]

A square of sides of 1cm does indeed have an area of 1 square cm, because 1x1=1.

But a square with sides of 2cm has an area of 4 square cm. And 2cm squared is 4 square cm.

I don't think there is such a term as "a squared centimeter". Square, yes, but not squared.

Don't understand English either then

Let's try this.

Someone tells you he's dug a circular pond in his garden. "It's 5m round", he says.

IMO the likeliest meaning of that is that the circumference is 5m. Maybe, but very unlikely, he means the diameter or the radius.

I don't think that anybody would begin to imagine that "5m" had anything to do with a measurement of its area.

If that was in a sprcification from a consultant, I would send an RFI, If, as many consultants do, the reply is something like "It's in the spec" then I would no choice but to quote for and, if successful at winning the job, dig it as 5m circumference, when he understands the error of his ways would charge the earth to make it any different. However I don't understand why you are making this even more confused.