Can someone help with this symbol?

[perhapstomorrow]

My dd has a worksheet with these arrow symbols on. Does anyone know what they mean? She doesn't know and I cannot find anything online that looks like this.

Pic isn't showing. Could you try again?

No picture

Oh dear. I'm having issues on my phone. Apologies for lack of photo and 3 identical posts!

Anyway, please see the pic attached.

How old is dd? If ks1, could it be more than or less than? < >

Oh haha cross post!

No idea then I'm afraid 😂

She is year 8 higher maths. I haven't got a clue!

No clue either!

Found this on Wikipedia

If I remember rightly, it means equivalent to/presumed to be equivalent to. So in your photo 14 could be presumed to be equivalent to 3⁵.

And visa versa too.

It is usually written to mean "If and only if" ... eg Jane will only eat fruit if the fruit is an apple. It also means that Jane will not eat any other fruit but that if the fruit is an apple, she will eat all of them. Mathematically, the link below isn't the best but it works for me to show the use of IFF equivalence. However, I don't understand what the equation that you have been set is actually asking....

There may be better If and Only If examples that are more pertinent

Thanks for the link @mssmith501. I'm so lost. The actual question is "give your answer in a fraction in its simplest form". The answer is 7 over 54. Unfortunately my dd isn't friends with any of the students in her maths class so can't ask them. She has quite a few questions with this symbol used throughout.

Can you not message her teacher? Mine are messaging me on our homework site. I'm having a lot messaging about work daily.

All this thread has done is to remind me how much I hate maths.

Given the answer, it's a mistype of the multiplication symbol.

As in, (3x7) squared = 441; 14 times 3 to the 5th is 3402. Simplest expression of 441/3402 is 7/54.

That would make sense as Year 8 maths too- making sure they know how brackets work with operators and functions.

Absolutely spot on! I thought that earlier but dismissed it as the equivalent sign is also a correct mathematical sign. Well done for bringing common sense to the problem. Wonder why the teacher used the wrong sign though?

Think you are right there. So its (3×7)² divided by (14×3⁵)

WTF I did AS level Maths and I’ve never seen that before in my life 🙈😂😵

I'm glad I only spent an hour on it .....

I suspect it might just be a mistype someone didn't spot! Not sure how you even get that symbol tho. Might be a sheet imported from one package to another and gone squiffy in the process...

So 21² / 14x243

Might be worth posting the next Op to test if the teachers keyboard has really gone mad and that they all mean X rather than