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

Toán Lớp 6: a) (-4 ). 25 .(-25) .(-5) .(-4) b)( -17) .( 1 – 382 )- 382 . 17 c) (-3879 – 3879 – 3879 – 3879).( -25 ) d) 369 .(-2) – 41 x 72 nha

Toán Lớp 6: a) (-4 ). 25 .(-25) .(-5) .(-4)
b)( -17) .( 1 – 382 )- 382 . 17
c) (-3879 – 3879 – 3879 – 3879).( -25 )
d) 369 .(-2) – 41 x 72
nhanh nha mik sẽ vote và cho ctlhn . cảm ơn trc

Comments ( 2 )

  1. Đáp án:
     
    Giải thích các bước giải:
     

    toan-lop-6-a-4-25-25-5-4-b-17-1-382-382-17-c-3879-3879-3879-3879-25-d-369-2-41-72-nha

  2. a) (-4).25.(-25).(-5).(-4)
    =[(-4).25].[(-4).(-25)].(-5)
    =-100.100.(-5)
    =-10000.(-5)
    =50000
    b) (-17).(1-382)-382.17
    =(-17).(-381)-382.17
    =-17.(-381+382)
    =-17.1
    =-17
    c) (-3879-3879-3879-3879).(-25)
    =-3879.(1+1+1+1).(-25)
    =-3879.4.(-25)
    =-3879.(-100)
    =387900
    d) 369.(-2)-41.72
    =41.(-2).9-41.72
    =41.(-18)-41.72
    =41.(-18-72)
    =41.(-90)
    =-3690

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

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