35.48 + 65.68 + 20.35
= 35.(48 + 20) + 65.68
= 35.68 + 65.68
= (35 + 65).68
= 100 . 68
= 6800
35.48+65.68+20.35
=35.48+20.35+65.68
=35.(48+20)+65.68
=35.68+65.68
=68.(35+65)
=68.100=6800
35 x 48 + 65 x 68 + 20 x 35
= 35 x (48 + 20) + 65 x 68
= 35 x 68 + 65 x 68
= 68 x (35 + 65)
= 68 x 100
= 6800
Học tốt!!!