47 x 98 + 94
= 47 x 98 + 47 x 2
= 47 x ( 98 + 2 )
= 47 x 100
= 4700
học tốt ^^
47 x 98 + 94
= 47 x 98 + 47 x 2
= 47 x (98 + 2)
= 47 x 100
= 4700
= 47 x (100-2 ) + 47 x 2
= 47 x 100 - 47 x 2 + 47 x 2
= 47 x 100
= 4700
\(47.98+94\)
\(=47.98+47.2\)
\(=47.\left(98+2\right)=4700\)