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

Toán Lớp 6: bài 1 a,(-34)+(-91)+(-26)+(99) b,(354)-(+75) c,(-35)+23-(-35)-47 d,24-(-136)-(-70)+15+(-115) e,37-(-43)+(85)-(-30)+15 giải hộ mik cái

Toán Lớp 6: bài 1
a,(-34)+(-91)+(-26)+(99)
b,(354)-(+75)
c,(-35)+23-(-35)-47
d,24-(-136)-(-70)+15+(-115)
e,37-(-43)+(85)-(-30)+15
giải hộ mik cái nha

Comments ( 2 )

  1. $\text{ a) ( -34 ) + ( -91 ) + ( -26 ) + 99 }$
    $\text{ = -34 – 91 – 26 + 99 }$
    $\text{ = ( -34 – 26 ) + ( -91 + 99 ) }$
    $\text{ = -60 + 8 }$
    $\text{ = -52 }$
    $\text{ b) ( 354 ) – ( +75 ) }$
    $\text{ = 354 – 75 }$
    $\text{ = 279 }$
    $\text{ c) ( -35 ) + 23 – ( -35 ) – 47 }$
    $\text{ = -35 + 23 + 35 – 47 }$
    $\text{ = ( -35 + 35 ) + ( 23 – 47 ) }$
    $\text{ = 0 + ( -24 ) }$
    $\text{ = -24 }$
    $\text{ d) 24 – ( -136 ) – ( -70 ) + 15 + ( -115 ) }$
    $\text{ = 24 + 136 + 70 + 15 – 115 }$
    $\text{ = ( 24 + 136 ) + 70 + ( 15 – 115 ) }$
    $\text{ = 160 + 70 + ( -100 ) }$
    $\text{ = 230 – 100 }$
    $\text{ = 130 }$
    $\text{ e) 37 – ( -43 ) + ( 85 ) – ( -30 ) + 15 }$
    $\text{ = 37 + 43 + 85 + 30 + 15 }$
    $\text{= ( 37 + 43 ) + ( 85 + 15 ) + 30 }$
    $\text{ = 80 + 100 + 30 }$
    $\text{ = 180 + 30 }$
    $\text{ = 210 }$
     

  2. $@Elaina2k4$
    Giải đáp+Lời giải và giải thích chi tiết:
    a)
    ( -34 ) + ( -91 ) + ( -26 ) + 99 
    = -34 – 91 – 26 + 99
    = (-34 – 26) + (-91 + 99)
    = (-60) + 8
    = -52
    b)
    ( 354 ) – ( +75 ) 
    = 354 – 75 
    = 279 
    c)
    ( -35 ) + 23 – ( -35 ) – 47 
    = -35 + 23 + 35 – 47 
    = ( -35 + 35 ) + ( 23 – 47 ) 
    = 0 + ( -24 ) 
    = -24
    d)
    24 – ( -136 ) – ( -70 ) + 15 + ( -115 ) 
    = 24 + 136 + 70 + 15 – 115 
    = ( 24 + 136 ) + 70 + ( 15 – 115 ) 
    = 160 + 70 + ( -100 ) 
    = 230 – 100 
    = 130 
    e)
    37 – ( -43 ) + ( 85 ) – ( -30 ) + 15 
    = 37 + 43 + 85 + 30 + 15 
    = ( 37 + 43 ) + ( 85 + 15 ) + 30 
    = 80 + 100 + 30 
    = 180 + 30
    = 210 

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

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