\(27.332+68.27+73.332+68.73\)
\(=27.\left(332+68\right)+73.\left(332+68\right)\)
\(=27.400+73.400\)
\(=\left(27+73\right).400\)
\(=400.100\)
\(=40000\)
27 x 332 + 68 x 27 + 73 x 332 + 68 x 73
= (27+73) x 332 + 68 x (27+73)
= 100 x 332 + 68 x 100
= 100 x (332 + 68)
= 100 x 400
= 40000
27 x 332 + 68 x 27 + 73 x 332 + 68 x 73
=(27+73+332+68)x2
=500x2
=1000
=27.[332+68]+73.[332+68]
=27.400+73.400
=[27+73].400
=100.400
=40000
mik nghĩ là đúng đó
