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

Toán Lớp 6: (-3) x (-2) x (-5) x4 B. 3 x 2 x (-8) x (-5) Giúp mình cho auto 5 sao

Toán Lớp 6: (-3) x (-2) x (-5) x4
B. 3 x 2 x (-8) x (-5)
Giúp mình cho auto 5 sao

Comments ( 2 )

  1. (-3) x (-2) x (-5) x4
    = 6 x (-20)
    =-120
    3 x 2 x (-8) x (-5)
    = 6 x 40
    =240
     

  2. (-3) xx (-2) xx (-5) xx 4
    = [-3 xx (-2)] xx (-5 xx 4)
    = 6 xx (-20)
    = -120
    _______________________________
    3 xx 2 xx (-8) xx (-5)
    = (3 xx 2) xx [-8 xx (-5)]
    = 6 xx 40
    = 240

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