Square roots.

[ChristmasTrulyReigns]

Been a long time since I was at school, but I've been helping DD2 with her homework, and I'm pretty sure that you can't work these out mentally?

Or is there a technique that I can show her?

TIA.

It is fantastic that you put this in food. I was thinking of ginger or summat, grown in a tidy square. :o

Sorry - can't help. Wandered in to find out which vegetable you were talking about.

Hmm, I have no idea, I only opened the thread to see what Square roots had to do with food!

You might want to re-post in chat!

Oh this is so funny - I thought you were looking for ways to jazz up your carrots and parsnips! :)

Feck.

Too many tabs open.

I was hoping to find out how to do really cool crudite.

On the issue at hand of how to do a square root is either:

1. remember the whole number ones by rote up to 100.

1. guess the square root and then multiply it up to see if comes to the number you want to know the square root of and then repeat by trial and error to get closer and closer.

1. Use a calculator

You could do it also by pencil and paper long divison but it is a hard and complicated.

I would recommend celeriac. By the time I have cut all the hairy bits off I am usually left with a 1" cube.

Gah - I'm like that with butternit squash!

Butternut.

I seem to remember there is a way where you divide the number into pairs, so if it's 4964, it divides into 49 and 64 and you take the nearest root for each number, which give 7 and 8, above, which would give an approximate square root of 78. No idea what the root of 4964 is, though.

You can use the same technique for the decimal parts of a number, starting from the decimal point and working right, in pairs, too.

Was that the sort of thing you were thinking of?