327 x 728 + 327 x 272
= 326 x 728 + 326 x 272 + 272
= 326 x 28728 + 272﴿ + 272
= 326 x 1000 + 272
= 326000 + 272
= 326272
326 x 728 + 327 x272
=326 x 728 + 327 x272 + 272
=326 x(728 +272)+272
=326 x 1000+272
=326000+272
=326272
học tốt
Tính nhanh
326.728+327.272
=326.728+326.272+272
=326.(728+272)+272
=326.1000+272
=326000+272
=326272
de ma lam the nay nay: 326 x728 +327x272
=326x728+{326+1}x272
=26x728+326x272+1x272
=326x{728+272}+272
=326x1000+272
=326000+272
=326272
\(326\times728+326\times272\)
\(=326\times\left(728+272\right)\)
\(=326\times1000\)
\(=326000\)
