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

Toán Lớp 6: Tính : A = ( 13! – 12! – 11! . 12^2 ) . 10^2021 + 7

Tháng Hai 6, 2023 Toán học 2 Comments 0 views

Toán Lớp 6: Tính :
A = ( 13! – 12! – 11! . 12^2 ) . 10^2021 + 7

Comments ( 2 )

  1. dongoclandiem
    dongoclandiem
    6 Tháng Hai, 2023 at 9:53 sáng
    Reply
    A = ( 13! – 12! – 11! . 12^2 ) . 10^2021 + 7
    A = ( 12! . 13 – 12! – 11! . 12 . 12 ) . 10^2021 + 7
    A = ( 12! . 13 – 12! – 12! . 12 ) . 10^2021 + 7
    A = 12! . ( 13 – 1 – 12 ) . 10^2021 + 7
    A = 12! . 0 . 10^2021 + 7
    A = 0 + 7
    A = 7

  2. huenthanh97
    huenthanh97
    6 Tháng Hai, 2023 at 9:53 sáng
    Reply
    Lời giải chi tiết:
    A=(13!-12!-11!.12^2).10^2021+7
    A=(12!.13-12!-12!.12).10^2021+7
    A=12!.(13-1-12).10^2021+7
    A=12!.0.10^2021+7
    A=0+7
    A=7

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

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