19x8+19x3-19
=19x8+19x3-19x1
=19x(8+3-1)
=19x10
=190
\(19.8+19.3-19\)
\(=19.\left(8+3-1\right)\)
\(=19.6\)
\(=114\)
=19x(8+3-1)
=19x10
=190
k cho mk ban nha
19 x8 + 19 x3 -19
=19 x(3+8-1)
=19 x 10= 190 nha
19 x 8 + 19 x 3 - 19
= 19 x ( 8 + 3 - 1 )
= 19 x 10
= 190 .