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 Problem-Solving Mathematic Questions.

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FungiBoy
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PostSubject: Problem-Solving Mathematic Questions.   Thu May 21, 2009 7:58 am

READING IS A MUST-HAVE SKILL!

Its very simple. Answer the last person's post's question and make your own question!

If someone had made a mistake. Reply a post to correct them and attempt on the question yourself and remember to make another question of your own.

Its my turn: Simon has 8 cookies in his oven. Simon ate 2 cookies.Simon gave his friend 3 cookies.Simon baked 10 more cookies. How many cookies does Simon have?

Don't worry if you get it wrong. the other person will post and correct you.


Last edited by FungiBoy on Sat May 23, 2009 2:39 am; edited 4 times in total (Reason for editing : Proof reading your instructions and rephrased it more.)
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Mayu
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PostSubject: Re: Problem-Solving Mathematic Questions.   Thu May 21, 2009 1:32 pm

um.. lemme c.. heres wat shudv happnd..
8 - 2 - 3 + 10 = ?

answer: ther shud b @ least 13 cookies!


Mi turn: wen Jacob creates a fence that is 90cm in perimeter, if two sides of the fence is 15cm, wat is the length of the othr two fences?

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PostSubject: Re: Problem-Solving Mathematic Questions.   Thu May 21, 2009 6:25 pm

Answer:the other is 30 cm on each other side.


My turn:Mae have 2/4 sugar in his cup.He has 1/4 salt and 3/4 cup of water.
What is the TOTAL of all the ingrediants that Mae has? (Answer is a Mix Fraction)
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PostSubject: Re: Problem-Solving Mathematic Questions.   Sat May 23, 2009 2:20 pm

oo!
2/4 + 1/4 = 3/4
& 3/4 + 3/4 = 6/4

but 6/4 is a impropr fraction.

therfor the answer is: 12/4 or 11/2


Mi turn: in the science fair, Michael bought the following (in mls):

  1. 8 nitrogen and 24 hydrogen
  2. 5 nitrogen and 15 hydrogen
  3. 3 nitrogen and 9 hydrogen


What is the Ratio of these chemicals? (respectively)

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PostSubject: Re: Problem-Solving Mathematic Questions.   Sun May 24, 2009 6:35 am

I think it is 8:24 5:15 and 3:9 am i right?



My turn:Samuel says that the square root of 49 is 7.Billy says that thw square root of 42 is 7? Who is correct?
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PostSubject: Re: Problem-Solving Mathematic Questions.   Sun May 24, 2009 7:34 am

sry ur incorrect try agen

the rite answr 2ur question is: Samuel bcuz the squar root of 49 is 7

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PostSubject: Re: Problem-Solving Mathematic Questions.   Sun May 24, 2009 10:19 am

Mayu, here's the answer to your problem.

The ratio for all the three chemicals is = 1 : 3
Because the nitrogen is 1/3 of the solution to the hydrogen (which is three times the power of the nitrogen)


My turn: Mack poured 250 grams of sugar into a baking tin to make a wedding cake. When he spilled the baking tin and only saved 140 grams of sugar back into the baking tin, how much sugar is wasted?

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