\(\left(-68\right)\cdot35-65\cdot68\)
\(=68\cdot\left(-35\right)-65\cdot68\)
\(=68\cdot\left(-35-65\right)\)
\(=68\cdot\left(-100\right)\)
\(=-6800\)
\(-68.35-65.68\)
\(=-\left[68.\left(35+65\right)\right]\)
\(=-\left(68.100\right)\)
\(=-6800\)
học tốt Trương Sam Phát
54756ghjyugtutyt686tutyuytut668t8t6865856867868
\(-68.35-65.68\)
\(=-\left[68\left(35+65\right)\right]\)
\(=-68.100\)\(=-6800\)