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Answers ( 7 )
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    Làm hơi tắt nhưng cũng đúng mk cảm ơn

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    Thanks you very much

    Xin lỗi vì khi sáng nói xấu bạn !

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     P/s : Bạn tính rất đúng cả 4 câu

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    80+20+40+50+60+20

    =(80+20)+(40+60)+(50+20)

    =100+100+70

    =200+70

    =270

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    Đang ăn cơm có 1 đàn chuột điếc chạy qua hỏi có bao nhiêu con?

    Chuột điếc là hư tai, hư tai là 24

    =>Có 24 con chuột điếc

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    Help you solve math is very good

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    help you solve very good

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Questions ( 18 )
  • Find x

    3,4 . x + (-1,4) . x + 3,5 = -5,5

  • A = \(\left(\dfrac{\left(2^2\right)^5.\left(3^2\right)^4-2.\left(2.3\right)^9}{2^{10}.3^8+\left(2.3\right)^8.\left(2^2.5\right)}\right)\) = ?

  • (a-b)2 => ...=>...=>?

  • \(\dfrac{2010}{2}\) + \(\dfrac{2010}{6}\) + \(\dfrac{2010}{12}\) + ... + \(\dfrac{2010}{9900}\) = ?

  • 3x+1 - 3x = 216

    x =?

  • 2,5 . \(\sqrt{16}\) - 3 . \(\sqrt{\dfrac{4}{0,25}}\) = ?

  • 3x+1 = 9x 

    x = ?

  • \(\sqrt{\dfrac{11}{25}}\) + 1 - \(\dfrac{1}{5}\) + \(\sqrt{\dfrac{25}{49}}\) + \(1\dfrac{2}{7}\) = ?

  • 4 . \(\left(\dfrac{-1}{2}\right)^3\) - 2 . \(\left(\dfrac{-1}{2}\right)^2\) = ?

  • 100 : 5 + 50 : 5=?

     

  • \(\dfrac{3}{5}\)+\(\dfrac{3}{2}\)+\(\dfrac{1}{5}\)+\(\dfrac{1}{2}\)

  • BCNN(4,8,10)=?

  • 80+20+40+50+60+20=how much?

  • How many days are there in month 1

  •     BCNN (4,6,8)=?

  • Mary had twenty nine eggs. She used some of them for five birthday cakes so that only nineteen were left.
    How many eggs did she use?
    Answer:
    She used .............eggs.
  • Let a be a natural number. Suppose that a gives a remainder of 38 when divided by 54; a gives 14 and a remainder r when divided by 18. What is the value of a+r? Khi chia số tự nhiên a cho 54, ta được số dư là 38. Chia số a cho 18, ta được thương là 14 và còn dư r. Hỏi giá trị của a+r?

    Trên mạng

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