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

Toán Lớp 5: tính nhanh : -329-(15-101)-(25-440)

Toán Lớp 5: tính nhanh : -329-(15-101)-(25-440)

Comments ( 2 )

  1. -329-(15-101)-(25-440)
    =(-329)-(-86)-(-379)
    =(-329)+86+379
    =[(-329)+379]+86
    =50+86
    =136
     

  2. – 329 – ( 15 – 101 ) – ( 25 – 404 )
    = -329 – (-86) – (-379)
    = -329 + 86 + 379
    = -342 + 379
    = 136
    @Rin

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

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