120.99+120
=120.99+120.1
=120.(99+1)
=120.100
=12000
120 x 99 + 120
= 120 x 99 + 120 x 1
= 120 x ( 99 + 1 )
= 120 x 100
= 12000
k mk nha Nguyễn Hữu Triết
\(120\times99+120\)
\(=120\times\left(99+1\right)\)
\(=120\times100\)
\(=12000\)
120.99+120
=120.99+120.1
=120.(99+1)
=120.100
=12000
nha bạn!!!!!!