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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 d) 123 + 2020 : { 101. [105 – (3+7)2]} e) (-125 + 48) – (-

Toán Lớp 6: a) (-12) + 56 + (-14)
b) 120 : 22 + 56 . 33
c) (-127) .741 + 259 .127 – 254
d) 123 + 2020 : { 101. [105 – (3+7)2]}
e) (-125 + 48) – (-125 + 53)

Comments ( 1 )

  1. a) (-12) + 56 + (-14)
    =(56-12)+(-14)
    =44+(-14)
    =(44-14)=30
    b) 120 : 22 + 56 . 33
    ( mik ko tính đc hoặc do bạn đánh máy sai đề)
    c) (-127) .741 + 259 .127 – 254
    =-94107+259.127-254
    =-94107+32893-254
    =127000-254
    =126746
    d) 123 + 2020 : { 101. [105 – (3+7)2]}
     123 + 2020 : { 101. [105 – (3+7)2]}
    =123+2020:{101.[105-102]}
    =123+2020:{101.3}
    =123+2020:303
    =123+??
    =??
    câu này sai đè:I
    e) (-125 + 48) – (-125 + 53)
    =(-77)-(-72)
    =-5

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