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

Toán Lớp 6: Bài 3 : Tính a ) (43 – 13 ). (-3 )+ 27 .( -14 – 16 ) b )(-72 ).( 34 – 12 )- 34.( 12 – 72)

Toán Lớp 6: Bài 3 : Tính
a ) (43 – 13 ). (-3 )+ 27 .( -14 – 16 )
b )(-72 ).( 34 – 12 )- 34.( 12 – 72)

Comments ( 2 )

  1. Lời giải và giải thích chi tiết:
    a, (43-13).(-3)+27.(-14-16)
    =30.(-3)+27.(-30)
    =-90-810
    =-900
    b,(-72).(34-12)-34.(12-72)
    =(-72).22-34.(-60)
    =-1584+2040
    =456
    $@Doraemon50th$

  2. a) =30.24.(-30)=-21600
    B) =(-72).22-34.(-60)=-3624

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

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