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

Toán Lớp 6: 25.14 + 32.64 + 5.5.86 + 32.9.4 HELPPPP!!!

Toán Lớp 6: 25.14 + 32.64 + 5.5.86 + 32.9.4
HELPPPP!!!

Comments ( 2 )

  1. 25 . 14 + 32 . 64 + 5 . 5 . 86 + 32 . 9 . 4
    = 25 . 14 + 32 . 64 + ( 5 . 5 ) . 86 + 32 . ( 9 . 4 )
    = 25 . 14 + 32 . 64 + 25 . 86 + 32 . 36
    = 25 . ( 14 + 86 ) + 32 . ( 64 + 36 )
    = 25 . 100 + 32 . 100
    = ( 25 + 32 ) . 100
    = 57 . 100
    = 5700
    #dtkc

  2. 25.14 + 32.64 + 5.5.86 + 32.9.4
    = 25.14 + 32.64 + 25.86 + 32.36
    = 25.(14 + 86) + 32.(64 + 36)
    = 25.100 + 32.100
    = 2500 + 3200
    = 5700

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

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