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

Toán Lớp 6: a) (-12) + 56 + (-14) b) 120 : 22 + 56 . 33 c) (-127) .741 + 259 .127 – 254

Toán Lớp 6: a) (-12) + 56 + (-14)
b) 120 : 22 + 56 . 33
c) (-127) .741 + 259 .127 – 254

Comments ( 2 )

  1. $\text{a) $(-12)+56+(-14)$}$
    $\text{=$[(-12)+(-14)$]+56}$
    $\text{=$(-26)$+56}$
    $\text{=$30$}$
    $\text{b) 120 : 22 + 56 . 33}$
    $\text{ = $\dfrac{60}{11}$   + 56 . 33}$
    $\text{ = $\dfrac{60}{11}$+1848}$
    $\text{ =$\dfrac{20388}{11}$  }$
    $\text{c) (-127) .741 + 259 .127 – 254 }$
    $\text{$= 127 .(-741) + 259 .127 – 254 $}$
    $\text{$= 127 .[(-741) + 259]– 254 $}$
    $\text{$= 127 .(-482) – 254 $}$
    $\text{$= 127 .(-736)$}$
    $\text{$= -93472$}$
    HỌC TỐT
    $\text{@duongbaongoc091586}$

  2. Giải đáp:
    a) (-12) + 56 + (-14)
     =44+(-14)
     =30
     b) 120 : 22 + 56 . 33
     =   6      +    1848
     =    1054
     c) (-127) .741 + 259 .127 – 254
    = -94107 + 32893 – 254
    =  -61378
    Lời giải và giải thích chi tiết:
     

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