27 - 256 divided by 4^2

I get... ( 27- 256 divided by 64 = -3578 125)...I know t's wrong but-

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- Feb 9th 2007, 01:20 PMradioflyer01One simple process problem
27 - 256 divided by 4^2

I get... ( 27- 256 divided by 64 = -3578 125)...I know t's wrong but- - Feb 9th 2007, 01:40 PMradioflyer01
I believe I forgot to divide first.

So it's probably 23.

27 - 4 = 23 - Feb 9th 2007, 02:07 PMCaptainBlack
- Feb 9th 2007, 02:18 PMradioflyer01
27 - 256 divided by 4^2

27 - 16 = 11

I believe I wrote the problem wrong

I should have wrote

27 - 256 divided by 4^3 - Feb 9th 2007, 02:23 PMCaptainBlack
It is still ambiguous. Add brackets to make the meaning clear.

Given the numbers involved it almost certainly is wanting:

27 - (256/(4^3)) = 27 - 256/64 = 27 - 4 = 23.

But this is guess work on my part, for all I know I am wasting my time

on the wrong problem.

RonL - Feb 9th 2007, 04:07 PMradioflyer01
Here is the problem as it appears.

http://img241.imageshack.us/img241/8585/prob1ej5.png

http://img241.imageshack.us/img241/8585/prob1ej5.png - Feb 9th 2007, 11:53 PMCaptainBlack
then it is ambiguous and you are free to make a choice about where you

put the brackets to make it unambiguous. But you should state what you

have done. I would interepret it as 27 - [256/(4^3)], as that makes

everything nice and round.

So go for an answer something like:

Assume that:

27 - 256 : 4^3

means:

27 - [256 : (4^3)]

which is:

27 - [256/(4^3)] = 27 - 256/64 = 27 - 5 = 23.

If you need a justification for making this assumption it can be:

" ':' is a variant form of division '/', and in most conventions for

the precedence of arithmetic operators '/' takes precedence over

'+' and '-' "

RonL - Feb 10th 2007, 01:17 AMearboth