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Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: - Education (8) - Nairaland

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Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Hamatrony(m): 9:48am On Dec 08, 2014
Answer is 8 jhoor!!! grin cheesy
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by crudedude(m): 9:48am On Dec 08, 2014
blank:


I got 4 as well. When there is no multiplication how can he open the bracket? If that is so then he should have opened it from the beginning. He can't just be selective. And here i was thinking that he studied maths.

He schooled in Francegrin
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by funkyjms: 9:51am On Dec 08, 2014
femi4:
That line is wrong
1-0+3 = 1+3 and not 1-+3

Proof:
1-0+3 can be simplify as (1-0)+3 OR 1(-0+3)

Hence, 1+3 = 1(+3-0) =4

Just like someone said, this is fishy.

In solving, 1-0+3, apply bodmas
Addition first, Add 0 to 3 first which will give you 3
Subtraction second, 1-3 which will give you -2

Regarding your proof,
If 1-0+3 can be simplify as (1-0)+3 OR 1(-0+3) as you claimed, then it means both cases should the same answer
1st case
(1-0)+3
(1)+3
1+3
4

Second case
1(-0+3)
1(+3-0)
1(3)
3

Both didn't produce the same answer!

1 Like

Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by funkyjms: 9:52am On Dec 08, 2014
blank:


I got 4 as well. When there is no multiplication how can he open the bracket? If that is so then he should have opened it from the beginning. He can't just be selective. And here i was thinking that he studied maths.

Exactly what I suggested
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by femi4: 9:55am On Dec 08, 2014
funkyjms:


Just like someone said, this is fishy.

In solving, 1-0+3, apply bodmas
Addition first, Add 0 to 3 first which will give you 3
Subtraction second, 1-3 which will give you -2

Regarding your proof,
If 1-0+3 can be simplify as (1-0)+3 OR 1(-0+3) as you claimed, then it means both cases should the same answer
1st case
(1-0)+3
(1)+3
1+3
4

Second case
1(-0+3)
1(+3-0)
1(3)
3

Both didn't produce the same answer!
oops, you are right! The second case is actually 1*3 and not 1+3

Case closed, Final answer is 4
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Nobody: 9:56am On Dec 08, 2014
0
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Pelumiv(m): 9:56am On Dec 08, 2014
LOUIS6:
This ur Answers shows you skul in France.... I heard dat dis is how dey get their answers over there in France

Here in Russia, we use head and calculator. lol.
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by maxy097(m): 9:56am On Dec 08, 2014
The answer is +2
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Gptech(m): 10:01am On Dec 08, 2014
funkyjms:


For those that got -2 and 4, the difference in answer stems from the bolded.
Should the bracket be expanded with minus or should the (2-2) be simplified to the to lowest form before opening the bracket like this

2- [1 - (1 - [2 - 3] - 2) + 3]
2- [1- (1- [-1] -2) +3]
2- [1- (1--1-2) +3]
2- [1- (1+1-2) +3]
2- [1- (2-2) +3]
2- [1- (0) +3]

2- [1-0 +3]
2- [1-+3]
2- [1-3]
2- [-2]
2--2
2+2
4

My verdict: First, I feel it's always advisable to simplify whatever inside a bracket to the simplest form before opening the bracket to make it easy. Second, I feel (2-2) should be simplified to the lowest form before opening the bracket. Why?
Even the OP, in the first/second step simplified the [2-3] to the lowest form before opening the bracket.

Now i c whr d confusion is coming frm.
1-0+3=4. How?
This is because 0 is nothing. There is nothing like +ve or -ve zero. Zero is nothing and can b seen as none existed.

Or to make it clearer,lets rearrange d numbers. For example, 2+6=6+2=8
-2+9=9-2=7
0-3=-3+0=-3(take note)
Therefore,
1-0+3=1+3-0=4-0=4
Hope its clear nw. Thanks
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Ohrydo: 10:03am On Dec 08, 2014
+1
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Pelumiv(m): 10:04am On Dec 08, 2014
A friend got -2. Op, Wetin be the answer jor.
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by DL(m): 10:07am On Dec 08, 2014
Icebeatz where are you?

The answer is 3
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Germeeu: 10:08am On Dec 08, 2014
funkyjms:


Just like someone said, this is fishy.

In solving, 1-0+3, apply bodmas
Addition first, Add 0 to 3 first which will give you 3
Subtraction second, 1-3 which will give you -2

Regarding your proof,
If 1-0+3 can be simplify as (1-0)+3 OR 1(-0+3) as you claimed, then it means both cases should the same answer
1st case
(1-0)+3
(1)+3
1+3
4

Second case
1(-0+3)
1(+3-0)
1(3)
3

Both didn't produce the same answer!
did u understand mathematics @all.coz u second is nt a mathematical solution @ all
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by html14java(f): 10:08am On Dec 08, 2014
This is the answer

Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Domwiz4all(m): 10:08am On Dec 08, 2014
This is simple na, the answer is +4
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Nobody: 10:09am On Dec 08, 2014
chai, see people weh sabi maths na. cry ayam jealous angry
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by dmighty: 10:10am On Dec 08, 2014
any arithmetic law, either basic or advance Will give you answer as +4.

1 Like

Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Coolguy89(m): 10:13am On Dec 08, 2014
Bleep maths I hate it wit passion
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by dazzle5: 10:16am On Dec 08, 2014
The answer is 4

1 Like

Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by funkyjms: 10:19am On Dec 08, 2014
Gptech:

Now i c whr d confusion is coming frm.
1-0+3=4. How?
This is because 0 is nothing. There is nothing like +ve or -ve zero. Zero is nothing and can b seen as none existed.

Or to make it clearer,lets rearrange d numbers. For example, 2+6=6+2=8
-2+9=9-2=7
0-3=-3+0=-3(take note)
Therefore,
1-0+3=1+3-0=4-0=4
Hope its clear nw. Thanks

So indirectly, what you're saying is that where I got this 2- [1-+3], the minus sign should have disappear with the zero?
Clear my doubt on this


Gptech:

This is because 0 is nothing. There is nothing like +ve or -ve zero. Zero is nothing and can b seen as none existed

It is because of this thought that I left out the zero but left behind the negative sign
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by funkyjms: 10:22am On Dec 08, 2014
Germeeu:
did u understand mathematics @all.coz u second is nt a mathematical solution @ all

Bro, I'm learning!

But please, how is it not?
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by jobsat34(m): 10:24am On Dec 08, 2014
icebeatz:
2 - [1 - (1 - [2 - 3] - 2) + 3]

I POSTED THIS MATHS QUESTION ON MY FACEBOOK GROUP AND OUT OF ALL THE PEOPLE THAT COMMENTED, ONLY ONE PERSON GOT IT RIGHT!!

NOW, I AM BRINGING IT TO NAIRALAND.


[2-3]=-1 so yu have
(1--1-2) which equal 0, so u have
[1-0+3] which equal -2,(-0+3 is -2, cos - * + is -) and lastly yu have
2--2 which equal 4

1 Like

Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Gptech(m): 10:27am On Dec 08, 2014
We should all know dat every number has a sign,either negative or positive. When we rearrange numbers,we move d numbers with their signs along with them. For example,

5-2+8-9=5+8-2-9=13-11=2

1-0+3 is nt equal to 1-3. There is no way (-) dat belongs to 0,can b given to +3.
For those that says 1-0+3=1-+3,when u take out d zero,u take out d sign along with it. Therefore, 1-0+3=1+3=4 (when we take out d zero,we take out d minus sign along with it)
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by justicesky24(m): 10:31am On Dec 08, 2014
The answer is -2
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by simdam500(m): 10:40am On Dec 08, 2014
hyfr :
icebeatz see your life? [1-(2-2)+3] this is pure bodmas, the negative sign in front of the bracket doesn't change anytin inside it, plus the brackets are solved first, the answer is 4.. Go ask a prof.. Its meant to be: 2-[1-(2-2)+3]. 2-[1-(0)+3]= 2-[1-+3]= 2-[-2]=4 brb

no no no no u are wrong........................

when there is a sign in front of a bracket,


u have no option than to expand it!!!!!!!!!!!!!!!!!
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Nobody: 10:44am On Dec 08, 2014
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Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by olusolaj(m): 10:48am On Dec 08, 2014
The answer is -2
100% sure
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Gptech(m): 10:49am On Dec 08, 2014
funkyjms:


So indirectly, what you're saying is that where I got this 2- [1-+3], the minus sign should have disappear with the zero?
Clear my doubt on this




It is because of this thought that I left out the zero but left behind the negative sign
Yes boss,take this example
5+0-2=5-2=3
We take out the +0. It is impossible to take out a number without taking its sign along with it. A number and its sign are inseperable. Trying to take out a number without its sign is like taking out Abuja from Nigeria.
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by michaelmjzee: 10:55am On Dec 08, 2014
I see no reason why you guyz keep arguing ova unnecessary thing. Av u all forgotten d'simple rule of bodmas? Wheneva you are solving a multiple bracket u start frm d innermost bracket. U dnt apply ur own rule 2 maths u follow d set rules
The answer is -2
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by Uchwilliam(m): 10:56am On Dec 08, 2014
Use bodmas
Ans is 4
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by simdam500(m): 10:56am On Dec 08, 2014
simdam500:

2 - [1 - (1 - [2 - 3] - 2) + 3]
2 - [1 - (1 - [-1] - 2) + 3]
2 - [1 - (1 + 1 - 2) + 3]
2 - [1 - (2 - 2) + 3]
*******************
2 - [1 - 2 + 2 + 3]
2 - [4]
-2


QED.

mention me
[size=24pt]
2 - [1 - (2 - 2) + 3]
this is where the confusion came in...
whenever u have a plus or minus sign in front of any bracket. u have no option than to expand......

bodmas, solving the brackets first won't work
2 - [1 - (2 + 2) + 3]

so going your own way will be

2 - [1 - (2 + 2) + 3]
2 - [1 - (0) + 3]
2 - [1 + 3]
2-4
-2

QED QED
QED QED

[/size]
Re: Solve This Simple Maths Question If You Can!:::::::::::::::::::::::::::::::::::: by html14java(f): 10:59am On Dec 08, 2014
icebeatz:
THE ANSWER IS -2

2 - [1 - (1 - [2 - 3] - 2) + 3]
2 - [1 - (1 - [-1] - 2) + 3]
2 - [1 - (1 + 1 - 2) + 3]
2 - [1 - (2 - 2) + 3]
2 - [1 - 2 + 2 + 3]
2 - [4]
-2

Even the OP is an international olodo lipsrsealed lipsrsealed lipsrsealed

2 - [1 - (1 - [2 - 3] - 2) + 3]
2 - [1 - (1 - [-1] - 2) + 3]
2 - [1 - (1 + 1 - 2) + 3]
2 - [1 - (2 - 2) + 3]
2 - [1 - 0 + 3]
2 - [-2]
4

2 Likes

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