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

Toán Lớp 6: tính hợp lý : (-28)x46+(-28)x52+2x(-28)

Toán Lớp 6: tính hợp lý : (-28)x46+(-28)x52+2x(-28)

Comments ( 2 )

  1. Lời giải chi tiết:
    (-28)xx46+(-28)xx52+2xx(-28)
    =(-28)xx(46+52+2)
    =(-28)xx100
    =-2800

  2. (- 28) x 46 + (- 28) x 52 + 2 x (- 28)
    = (- 28) x (46 + 52 + 2)
    = (- 28) x 100
    = – 2800
    $# Ling$
     

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

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