Trying To Help Grandson.

[ImLostAgain]

I had to go around town picking up numbers from various places so he can work out some sort of total for something or other. This I have done and it's all I'm expected to do.
I'd like to surprise him by pretending I've also worked out the arithmetic but as I think I've mentioned before , I'm no good at this type of thing. Anyway here's the arithmetic.
((1+4)(6+3)). ((4+1+1)(8+1)((4+5)-9))
also ((5-3)(7-1)). ((9-5)(8-1)(7-3))
I was never taught maths in my day using (bidmas?) method although I'm getting used to it, slightly but the double brackets I still struggle with.
This is all dependant on me picking the correct numbers up in the first place of course.
Of course I will come clean about working out the numbers. He'll know anyway!

[Togo]

Assuming that you got the numbers right and then wrote it down correctly and that a couple of glasses of Shiraz didn't addle me. In my head I get.
45, 54, 0. 24,112.

[1581960]

5x9=45. 6x9x0=0. 2x6=12. 4x7x4=112.

[ToraToraTora]

((1+4)(6+3)) = 45
( (4+1+1)(8+1) ((4+5)-9) ) = (6x9) x (9-9) = 54 x 0 = 0
((5-3)(7-1)) = 12
((9-5)(8-1)(7-3)) 4 x 7 x 4 = 112

assuming you wrote it correct and I understood what you meant!

[1581960]

Snap

[Togo]

Haha I did the 4th one twice in my head. Like I said as long as a couple of....

Encouraging your Grandson to do the maths is a gift he will always appreciate and remember you for.

[ImLostAgain]

Thanks all. I'll amaze him with my genius (not)!
Togo, it seems more like he's teaching me, but yes I know what you mean.
Again, thanks all.

[ToraToraTora]

BTW it's BODMAS but here you only have brackets and otherwise equivalent operations so you just do the brackets inside out so for example:
((4+1+1)(8+1)((4+5)-9))
((6)x(9) x ((9)-9))
6x9x0....

[bobbinwales]

These assume its 4 seperate calculations and the dot between them dont mean something (I vaguely remeber a.b (adotb) at night school but forgot what it means)

[Ellipsis]

"." can mean multiply, in which case ...

> ((1+4)(6+3)). ((4+1+1)(8+1)((4+5)-9))

(5x9)x(6x9x0) =
45x0 =
0

> also ((5-3)(7-1)). ((9-5)(8-1)(7-3))

(2x6)x(4x7x4) =
12x112 =
1344

[ToraToraTora]

the . means multiply normally but I took it to be punctuation in this case or I would have expected it here for example...
((1+4).(6+3))

[Geoffrey13]

Having received the numbers from you, has he worked out the arithmetic himself ?

[bobbinwales]

well the dot wouldnt be needed in your example.
The only reason I thought it might be two questions not 4 is the way imlostagain used the word ALSO and didn't put each on a seperate line

[ImLostAgain]

Sorry I've just returned home. The dot is indeed a punctuation mark and there are four seperate calculations. I should have made that clear. Apologies for any confusion.

[bobbinwales]

Thanks for the update...Good luck.
It's defo called BIDMAS now not BODmAs like it was when we was at school TTT....helped my neice with it a few times. ... I found its I for indeces (powers) not order or other anymore. Same answers tho

[roopower]

My goodness, absolutely no idea, another language. I admire those that understand and honour those that can get the right answer!

[bobbinwales]

From my memory of BIDMAS/BODMAS theres unnecessary brackets in them questions, eg
((1+4)(6+3)) could just be (1+4)(6+3)

((4+1+1)(8+1)((4+5)-9)) could just be (4+1+1)(8+1)(4+5-9)