=(38+62)*27+(37+90)
=100*27+127
=2700+127=2827
27 x 38 + 62 x 37 + 27 x 90
\(=27\times\left(38+90\right)+62\times37\)
\(=27\times128+62\times37\)
\(=4356+2294\)
\(=6650\)
27×38+62×37+27×90
=27×(38+90)+62×37
=27×128+62×37
=4356+2294
=6650