128*68 + 16*256 = 128*68 + 16*2*128 = 128 * ( 68+32) = 128* 100 = 12800
K HỘ MÌNH VS Ạ :3
\(128\cdot68+16\cdot256\)
\(=128\cdot2\cdot34+16\cdot256\)
\(=256\cdot34+16\cdot256\)
\(=256\cdot\left(34+16\right)\)
=\(=256\cdot50=12800\)
\(128\times68+16\times2\times128 \)
\(128\times68+16\times256\)
\(=128\times68+16\times2\times128\)
\(=128\times\left(68+16\times2\right)\)
\(=128\times100\)
\(=12800\)
\(128\times68+16\times256\)
\(=128\times68+16\times2\times128\)
\(=128\times68+32\times128\)
\(=128\times\left(68+32\right)\)
\(=128\times100\)
\(=12800\)
Dấu chấm là dấu nhân nha bạn
\(128.68+16.256\)
\(=128.68+16.128.2\)
\(=128.\left(68+16.2\right)\)
\(=128.\left(68+32\right)\)
\(=128.100\)
\(=12800\)
128 x 68 + 16 x 256
= 128 x 68 + 16 x 2 x 128
= 128 x 68 + 32 x 128
= 128 x ( 68 + 32 )
= 128 x 100
= 12800
~ Hok tốt ~
