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

Toán Lớp 4: Tính nhanh: 1677 + 1969 + 1323 + 666 + 1031 + 3334

Toán Lớp 4: Tính nhanh: 1677 + 1969 + 1323 + 666 + 1031 + 3334

Comments ( 2 )

  1. 1677+1969+1323+666+1031+3334
    =(1677+1323)+(1969+1031)+(666+3334)
    =3000+3000+4000
    =6000+4000
    =10000

  2. Tính nhanh: 1677 + 1969 + 1323 + 666 + 1031 + 3334
    1677 + 1969 + 1323 + 666 + 1031 + 3334
    =(1677+1323)+(1969+1031)+(666+3334)
    =3000+3000+4000
    =10 000
    Vậy=>10 000
     

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