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

Toán Lớp 6: (-625)-{(-547)-352-[(-147)-(-735)+(2200+65)]}.Tính nhanh

Toán Lớp 6: (-625)-{(-547)-352-[(-147)-(-735)+(2200+65)]}.Tính nhanh

Comments ( 1 )

  1. (-625) – {(-547) – 352 – [(-147) – (-735) + (2200 + 65)]}
    =-625 – {-547 -352 – [ -147 + 735 +2200 +65]}
    =-625 – {-547 – 352 +147 -735 -2200 -65}
    =-625 +547 +352 -147 +735 +2200 +65
    =-625 + 735 +65 +547 -147 +2200 +352
    =-625 +800 + 400 +2200 +352
    =3400 +352 -625
    =2775 +352
    =3127
     

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