1994 x 867 + 1995 x 133
= 1994 x 867 + ( 1994 + 1 ) x 133
= 1994 x 867 + 1994 x 133 + 133
= 1994 x ( 867+133) + 133
= 1994 x 1000 + 133
= 1994000+ 133
= 1994133
\(1994\times867+1995\times133\)
\(=1994\times867+1994\times133+133\)
\(=1994\times\left(867+133\right)+133\)
\(=1994\times1000+133\)
\(=1994000+133\)
\(=1994133\)
1994 x 867 + 1995 x 133 = 1728798 + 265335
= 1994133
1994 x 867 + 1995 x 133
= 1728798 + 265335
= 1994133 .
ai k mik , mik k lại
