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

Toán Lớp 6: -2021+(-21+2021)-79 1152-(374+1152)+(-65+374)

Toán Lớp 6: -2021+(-21+2021)-79
1152-(374+1152)+(-65+374)

Comments ( 2 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
     -2021+(-21+2021)-79
    =-2021-21+2021-79
    =(2021-2021)-(79+21)
    =0-100
    =-100
    1152-(374+1152)+(-65+374)
    =1152-374-1152-65+374
    =(1152-1152)+(374-374)-65
    =0+0-65
    =-65

  2. $#Shin$ 
    $-2021$ + ( $-21$ + $2021$ ) – $79$
    = $-2021$ + $2000$ – $79$
    = $-21$ – $79$
    = $-100$
    $1152$ – ( $374$ + $1152$ ) + ( $-65$ + $374$ )
    = $1152$ – $1526$ + $309$
    = $-374$ + $309$
    = $-65$
     

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