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

Toán Lớp 6: (1+ 3 + 5 + 7 + …+ 2019 + 2021).(13431.131+14541.121)

Toán Lớp 6: (1+ 3 + 5 + 7 + …+ 2019 + 2021).(13431.131+14541.121)

Comments ( 1 )

  1. Giải đáp:
    3596764073562
    Lời giải và giải thích chi tiết:
    (1+3+5+7+…+2019+2021).(13431.131+14541.121)
    =[(2021+1)+(2019+3)+(2017+5)+…+(1009+1013)+1011].(13431.131+14541.121) (có 505 tổng bằng 2022)
    =(2022.505+1011).(13431.131+14541.121)
    =(1021110+1011).(1759461+1759461)
    =1022121.3518922
    =3596764073562

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