1 2 4 Next
Topic: Many Persons Will Fail This Maths!
no photo
Sat 08/01/15 10:56 AM
Edited by eric22t on Sat 08/01/15 11:03 AM
exp is exponents powers and squares

mutiply and divide rate the same
work left to right

add and subtract rate the same
work left to right


thanks tulip you beat me to it

no photo
Sat 08/01/15 11:21 AM
www.mathsisfun.com/operation-order-pemdas.html

has the best explanation i found

but the rest of the sites i peeked at confirm it

no photo
Sat 08/01/15 11:37 AM
I am taking your word for it, although I got mixed results when I researched. The correct answer therefore remains 7. Game over. sick

tulip2633's photo
Sat 08/01/15 12:45 PM
B Brackets
O Order
D Division
M Multiplication
A Addition
S Subtraction


I think it's bodmas in India but still same as pedmas. Were all doing the same thing where it matters.

no photo
Sat 08/01/15 12:50 PM
You just confused everyone again. Make sure to state division OR multiplication and THEN addition OR subtraction, going left to right.

tulip2633's photo
Sat 08/01/15 12:54 PM
Speak for yourself.


no photo
Sat 08/01/15 12:56 PM
Edited by eric22t on Sat 08/01/15 12:57 PM
the 2 memnotics ire just different ways of saying the same thing


divide and multiply are equally ranked do them from left to right



subtract and add are equally ranked do them from left to right

tulip2633's photo
Sat 08/01/15 01:04 PM
Thanks eric. I brought some popcorn just in case this mulberry bush gets the best of us.



no photo
Sat 08/01/15 01:09 PM
thanks! should i get the car key extractor as well????

tulip2633's photo
Sat 08/01/15 01:14 PM
Did you break the key off?

no photo
Sat 08/01/15 01:18 PM
no but i think there is one stuck in an ear

tulip2633's photo
Sat 08/01/15 01:40 PM
laugh

Fun thread.

Kaustuv1's photo
Sun 08/02/15 06:49 AM
Edited by Kaustuv1 on Sun 08/02/15 06:55 AM
Solve this maths and show your working. 6-1*0+2\2=?





To Uche:



I had solved this earlier (in this particular thread) and obtained the result as 5. That answer (and the 'working/explanation') is incorrect. All those who've obtained 7 as the 'answer', are correct. My 'heartfelt' congratulations to them.:smile: flowerforyou


Now, I'll explain my working as follows:

Step 1: Identify the operators:

Subtraction (-)

Multiplication (*)

Addition (+)

Division (/)


Step 2: Precedence Of Operators (according to the BODMAS rule):

(Highest To Lowest)

/

*

+

-


Step 3: Now, we proceed as follows:


6 - 1 * 0 + 2 \ 2

= 6 - 1 * 0 + ( 2 / 2)

= 6 - 1 * 0 + 1

= 6 - (1 * 0) + 1

= 6 - 0 + 1

After this step, I went wrong in my earlier attempt. A bad conceptual mistake on my part.

= 6 + 1 - 0

= (6 + 1 ) - 0

= 7 - 0

= 7


Therefore, the result of the above given mathematical expression will be 7.

Kudos to 'all' who got '7' as their answer.:smile:




Note To Self:


6 - 0 + 1 may not be written as: 6 - (0+1) [This was my 'conceptual' error, earlier on.) However, 6 - 0 + 1 may be written as:

6 + ( - 0 + 1)

= 6 + ( 1 - 0)

= 6 + 1

= 7 (which again yields 7 as the correct answer)





Thank You Uche Once Again. Your 'spectacular' thread enabled me to 'learn' & 'rectify' my conceptual lapses.:smile: :thumbsup: waving


I'll remember this..:smile: :thumbsup: waving

1 2 4 Next