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

Toán Lớp 6: a)(-7) + (-2) = ??? b)(-8) + (-5) = ???

Toán Lớp 6: a)(-7) + (-2) = ???
b)(-8) + (-5) = ???

Comments ( 2 )

  1. a) (-7) + (-2) = [ -(7 + 2 )] = -9
    b)(-8) + (-5) = [ -(8 + 5 )] = -13
    Xin hay nhất và 5 sao ạ
     

  2. a) 
    (-7)+(-2)
    =-7-2
    =-9
    b)
    (-8)+(-5)
    =-8-5
    =-13
     

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

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