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

Toán Lớp 6: (-13)+40+(-67) mn giúp mik với

Toán Lớp 6: (-13)+40+(-67) mn giúp mik với

Comments ( 2 )

  1. (-13)+40+(-67)
    =[(-13)+(-67)]+40
    =[-13-67]+40
    =(-80)+40
    =-40

  2. =[(-13)+(-67)]+40
    [-13-67]+40

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