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

Toán Lớp 6: c , [ 36.4 – 4 . ( 82 – 7 .11 ) mũ 2 ] : 4 – 2020 mũ 0 d,112: [ 20 – ( 10 – 8 ) mũ 2 ] thông cảm cho mink vì mink ko biết ghi

Toán Lớp 6: c , [ 36.4 – 4 . ( 82 – 7 .11 ) mũ 2 ] : 4 – 2020 mũ 0
d,112: [ 20 – ( 10 – 8 ) mũ 2 ]
thông cảm cho mink vì mink ko biết ghi dấu mũ
lưu ý : dấu chấm là dấu nhân , còn mũ 2 nằm ở ngoài dấu ngoặc tròn nha.

Comments ( 2 )

  1. c) [36 . 4 – 4 . ( 82 – 7 . 11)^2] : 4 – 2020^0
    = [ 144 – 4 . ( 82 – 77)^2] : 4 – 1
    = [144 – 4 . 5^2] : 4 – 1
    = [ 144 – 4 . 25] : 4 – 1
    = [ 144 – 100] : 4 – 1
    = 44 : 4 – 1
    = 11 – 1
    = 10
    d) 112 : [ 20 – ( 10 – 8)^2]
    = 112 : [ 20 – 2^2]
    = 112 : [ 20 – 4]
    = 112 : 16
    =7
    #caty09
     

  2. $\text{ c, [ 36. 4 – 4. $( 82 – 7. 11 )^2$ ] : 4 – $2020^0$ }$
    $\text{ = [ 36. 4 – 4. $( 82 – 77 )^2$ ] : 4 – 1 }$
    $\text{ = [ 36. 4 – 4. $5^2$ ] : 4 – 1 }$
    $\text{ = [ 36. 4 – 4. 25 ] : 4 – 1 }$
    $\text{ = 4. ( 36 – 25 ) : 4 – 1 }$
    $\text{ = 36 – 25 – 1 }$
    $\text{ = 11 – 1 }$
    $\text{ = 10 }$
    $\text{ d, 112 : [ 20 – $( 10 – 8 )^2$ ] }$
    $\text{ = 112 : [ 20 – $2^2$ ] }$
    $\text{ = 112 : [ 20 – 4 ] }$
    $\text{ = 112 : 16 }$
    $\text{ = 7 }$
     

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