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

Toán Lớp 6: a, 234 + (-17) + 166+ (-83) b,37.51 + 49.37 – 2021 c,5^6 : 5^3 + 2^3.2^2 -17 d,160 : { 17+[3^2.5-(14+2^11 :2^8)]} e,(83+234)-(34-17)

Toán Lớp 6: a, 234 + (-17) + 166+ (-83)
b,37.51 + 49.37 – 2021
c,5^6 : 5^3 + 2^3.2^2 -17
d,160 : { 17+[3^2.5-(14+2^11 :2^8)]}
e,(83+234)-(34-17)

Comments ( 2 )

  1. Lời giải và giải thích chi tiết:
     a) 234 + ( – 17) + 166 + ( – 83)
    = ( 234 + 166 ) + [ ( – 17 ) + ( – 83 ) ]
    = 400 + ( – 100 )
    = 300
    b) 37 . 51 + 49 . 37 – 2021
    = 37 . ( 51 + 49 ) – 2021
    = 37 . 100 – 2021
    = 3700 – 2021
    = 1679
    c) 5^6 : 5^3 + 2^3 . 2^2 – 17
    = 15625 : 125 + 8 . 4 – 17
    = 125 + 32 – 17
    = 157 – 17
    = 140
    d) 160 : { 17+ [ 3^2 . 5 – ( 14 + 2^11 : 2^8 ) ] }
    = 160 : { 17 + [ 3² . 5 – ( 14 + 8 ) ] }
    = 160 : { 17 + [ 9 . 5 – 22 ] }
    = 160 : { 17 + 23 }
    = 160 : 40
    = 4
    e) ( 83 + 234) – (34 – 17)
    = 83 + 234 – 34 – 17
    = 317 – 17
    = 300
    Chúc bn hok tốt

  2. Chúc bạng học tốt ạ :33
    TN_My
     

    toan-lop-6-a-234-17-166-83-b-37-51-c-5-6-5-3-2-3-2-2-17-d-160-17-3-2-5-14-2-11-2-8-e-83-234-34-1

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