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

Toán Lớp 6: cách làm nhanh nhất 48.19 + 48.115 + 134.52

Toán Lớp 6: cách làm nhanh nhất 48.19 + 48.115 + 134.52

Comments ( 2 )

  1. 48 . 19 + 48 . 115 + 134 . 52
    = 48 . ( 19 + 115 ) + 134 . 52
    = 48 . 134 + 134 . 52
    = 134 . ( 48 + 52 )
    = 134 . 100
    = 13 400

  2. cách làm nhanh nhất 48.19 + 48.115 + 134.52
    48.19 + 48.115 + 134.52
    =48. (19+15) + 134 .52
    =48. 134+134.52
    =134. (48+52)
    =134.100
    =13400
    #username Bbbaaaooo
     

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

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