To ask for help with DS maths homework

[Mumski45]

Even though I have a maths degree!
He is 10 and in year 6. I can find a 'cryptarithm solver' using google but need to explain strategy to him so that doesn't help!

Thanks Dixie. I tried simultaneous equations but had too many variables. I'm also trying to think like a 10/11 year old.

Surely not many 10 year olds would have a change of solving that? It's melting my brain a bit.

Careful Dixie, they are both subtractions.

Very hard - way too hard for yr 6 I would think. Secondary maths here.

I think G = 2J.. but can't remember where I got that from!

The way I'd go about it is to order them from the greatest to the smallest. We know g=0, e is greater then c or I ( c+I=e) and just slot the other letters in one by one until you have all of them in order. Then you'll know what's what.

Just be careful about anything being carried over. I don't think the maths is tricky here at all - it's more of an intelligence question.

I am assuming that there is a 'key' to unlocking it.
Not sure if both should be solved together or not.
In addition to the g=2j I got that A-1=F

And so j=1,2,3 or 4

Does j=i+1 (in which case j = 2,3 or 4 and g = 4,6 or 8)

Was you ds given no clue how to solve this? Feel like there must be some trick we're missing.

J is greater than I so can't be 1.
So that counts 2 out for G as well

Cross post!

Scrap most of that, i could be 0

Though if i was 0 they'd have left it blank so forget that...

Not necessarily.

If GJ then G=2J

Anyway, it's a horrible exercise, with limited merit as a homework piece. Possibly useful as a class based discussion piece along the lines of "how on earth would you approach this?"

My starting point would be eliminating all the things that can't be zero due to their positions in the values, so J A C F and I

Then deduce A-1=F and J-1=I

Then I'd probably either lose the will to live, or make the deeply clever move of re-writing them as additions to see where that got me

FGDCI
FGHC
---
ABCDE

and

IFGHJ
CDGJ
---
JGAEG

Then I'd go and annoy the maths teacher by asking what the intended learning outcome of this annoying shit is exactly?

If he is year 6..Not been taught it in school...Send a note he tried didn't know how to do it.

I learned my lesson trying to teach my DS how to do fractions...

Careful alignment of place values lost in the additions above, but hopefully the idea is apparent.

Anyway, is bollecks, and I wouldn't bother my arse doing it.

How the effing Jeff?

It's keeping dh nicely occupied.