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

Toán Lớp 6: 2. 53 .12 + 4. 6 . 87 – 3. 8 . 40

Toán Lớp 6: 2. 53 .12 + 4. 6 . 87 – 3. 8 . 40

Comments ( 2 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    2 . 53 .12 + 4 . 6 . 87 – 3 . 8 . 40
    = 24 . 53 + 24 . 87 – 24 . 40
    = 24 . (53 + 87 – 40)
    = 24 . 100
    = 2400

  2. 2 . 53 . 12 + 4 . 6 . 87 – 3 . 8 . 40
    = (2 . 12) . 53 + (4 . 6) . 87 – (3 . 8) . 40
    = 24 . 53 + 24 . 87 – 24 . 40
    = 24 . ( 53 + 87 – 40 )
    = 24 . 100
    = 2400

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