wai kit asked in 教育及參考書教學 · 1 decade ago

數學四則運算x1

[(11-4)÷(2+5)+3x6+5]÷9

計埋比我睇

5 Answers

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  • 1 decade ago
    Favorite Answer

    [(11-4)(2+5)+3x6+5]9

    =>[77+3 x 6+5]9

    =>(1+18+5)9

    =>249

    =>2.6.

    =>2 2/3( 2又3分2)

    2009-09-05 16:13:32 補充:

    計錯.Sorry!

    [(11-4)÷(2+5)+3x6+5]÷9

    =>[7÷7+3 x 6+5]÷9

    =>(1+18+5)÷9

    =>24÷9

    =>2.6.

    =>2 2/3( 2又3分2)

  • 1 decade ago

    [(11-4)÷(2+5)+3x6+5]÷9

    =[7÷7+18+5]÷9

    =[1+23]÷;9

    =24÷9

    =2又3分之2

    Source(s):
  • 1 decade ago

    [(11-4)÷(2+5)+3x6+5]÷9

    =(7÷7+18+5)÷9

    =(1+18+5)÷9

    =24÷9

    =2.6666666666666666666666666667

  • 1 decade ago

    先計左括號入面既數先,

    即係計[(11-4)÷(2+5)+3x6+5],

    即7÷7+18+5,

    之後就1+18+5,

    等於24

    之後再除9

    最後等於2又3分之2。

    Source(s): 自己
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  • 1 decade ago

    [(11-4)÷(2+5)+3x6+5]÷9

    =(7÷7+18+5)÷9

    =24÷9

    =2.666666667 (2又3分2)

    Source(s): me
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