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

Toán Lớp 6: 3^3×5^3- 20{15×[356- 2^3(7^8:7^6+7^0)]}

Toán Lớp 6: 3^3×5^3- 20{15×[356- 2^3(7^8:7^6+7^0)]}

Comments ( 2 )

  1. 3^3 . 5^3 – 20.{15 . [356 – 2^3.(7^8:7^6+7^0)]}
    = 27 . 125 – 20.{15 . [356 – 8. (49 + 1)]}
    = 3375 – 20.{15 . [348 . 50]}
    = 3355 .{15 . 17400}
    = 3355. 261000
    = 875655000

  2. Giải đáp:
    =16575
    Lời giải và giải thích chi tiết:
    3^3 xx5^3 – 20{15xx[356-2^3. (7^8: 7^6 + 7^0)]}
    =3^3 ×5^3- 20{15×[356- 2^3(49+1)]}
    =3^3 ×5^3- 20[15×(356- 2^3. 50)]
    =3^3 ×5^3- 20[15×(356-400)]
    =3^3 ×5^3- 20[15×(-44)]
    =3^3 xx 5^3 -20.(-660)
    =27. 125 -(-13200)
    =3375+87600
    =16575

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