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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: tính b 16.50.(-25).(-250) c 4.(-8).25.(-125).(-50)

Toán Lớp 6: tính
b 16.50.(-25).(-250)
c 4.(-8).25.(-125).(-50)

Comments ( 2 )

  1. $\text{ b) 16. 50. ( -25 ) . ( -250 ) }$
    $\text{ = ( -4 ). ( -4 ). 50. ( -25 ) . ( -250 ) }$
    $\text{ = [ ( -4 ). ( -25 ) ]. [ ( -4 ). ( -250 ) ]. 50 }$
    $\text{ = 100. 1000. 50 }$
    $\text{ = 100 000 . 50 }$
    $\text{ = 5 000 000 }$
    $\text{ c) 4. ( -8 ). 25. ( -125 ). ( -50 ) }$
    $\text{ = [ 4. ( -50 ) ]. [ ( -8 ). ( -125 ) ]. 25 }$
    $\text{ = ( -200 ). 1000. 25 }$
    $\text{ = -200 000. 25 }$
    $\text{ = -5 000 000 }$
     

  2. Giải đáp + Lời giải và giải thích chi tiết:
    b) 16.50.(-25).(-250)
    =[16.(-25)].[50.(-250)]
    =-400.(-12500)
    =5 000 000
    c) 4.(-8).25.(-125).(-50)
    =(4.25).[-8.(-125)].(-50)
    =100.1000.(-50)
    =-5000000
    @Wee
     

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222-9+11+12:2*14+14 = ? ( )