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

Toán Lớp 6: 34- ( 10-15 ) + 15 ( 34 – 10 )

Toán Lớp 6: 34- ( 10-15 ) + 15 ( 34 – 10 )

Comments ( 2 )

  1. 34. ( 10-15 ) + 15. ( 34 – 10 )
    =(34.10)−(34.15)+(15.34)−(15.10)
    =(34.15-15.34)+(34.10-15.10)
    =10.(34-15)+0
    =10.19
    =190

  2. Giải đáp + Lời giải và giải thích chi tiết:
    34 . (10 – 15) + 15 . (34 – 10)
    = 34 . 10 – 34 . 15 + 15 . 34 – 15 . 10
    = (-34 . 15 + 15 . 34) + 34 . 10 – 15 . 10
    = 0 + 34 . 10 – 15 . 10
    = 0 + (34 . 10 – 15 . 10)
    = 0 + 190
    = 190
    @Ryan
     

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

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