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

Toán Lớp 6: tính nhanh a.-3752-(29-3632)-51 b.321+{-15+[30+(-321)]} c.4524-(864-999)-(36+3999) d.1000-(137+572)+(263-291) giúp mik mik vote 5 sao ạ

Toán Lớp 6: tính nhanh
a.-3752-(29-3632)-51
b.321+{-15+[30+(-321)]}
c.4524-(864-999)-(36+3999)
d.1000-(137+572)+(263-291)
giúp mik mik vote 5 sao ạ

Comments ( 2 )

  1. $@Elaina2k4$
    Giải đáp+Lời giải và giải thích chi tiết:
    A, −3752−(29−3632)−51
    =−3752−(−3603)−51
    =−3752+3603−51
    =−149−51
    =−200
    $B,$ 321+{(-15)+[30+(-321)]}
    =321+[(-15)+(291)]
    =321+(-306)
    =15
    $C,$ 4524−(864−999)−(36+3999)
    =4524−864+999−36−3999
    =3660+(−3036)
    =624
    D, 1000 – ( 137 + 572 ) + ( 263 – 291 )
    = 1000 – 709 + ( – 28 )
    = 291 + ( -28 )
    = 263
     

  2. a)-3752-(29-3632)-51
    =-3752+3603-51
    =-149-51
    =-200
    b)321+{-15+[30+(-321)]}
    =321-15+30-321
    =(-15+30)+(321-321)
    =-15
    c)4524-(864-999)-(36+3999)
    =4524-864+999-36-999
    =4524+(-864-36)+(999-999)
    =4524-900
    =3624
    d)1000-(137+572)+(263-291)
    =1000-137-527+263-291
    =1000+(-137-527-291)+263
    =1000-1000+263
    =263

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